Aquarium Water Change, How Often, How Much and Why Feb 08, 2019 PalaciosAn 3798 1 0 A water change is an act of removing dirty water from your aquarium … Provide the right light. Tonic, or aquarium salt, is basically plain old sodium chloride, often with a bit of anti-caking agent thrown in to make it easier to pour. I know some may say whenver I make a water change but that still doesn't seem like enough. Table salt, on the other hand, simply affects the volume (not the hardness) of the water. If you continue to use this site we will assume that you are happy with it. Iodized table salt doesn’t reduce ammonia in an aquarium. Salt should be added sparingly to a freshwater aquarium. This will keep the fish from coming into direct contact with the salt, which may cause … Adding enough salt for the entire fish tank is hazardous and should never be an option. This use of. On the other hand, due to the high amount of salt, it can be dangerous to your shrimp and snails. Even a small amount can kill them and their presence in a freshwater tank is vital to the fish that inhabit it. Does that mean if they are showing any signs in the future, I should add more? Since a healthy tank is given a water change every week, you should add more salt every week - enough for the new water. In fact, some salt mixes (coupled with tap water) can cause ammonia levels to rise! I am compensated for referring traffic and business to Amazon and other companies linked to on this site. Once a week water changes have to be marine salt. This reduces the level of . Whenever treating freshwater fish with salt, you must monitor the fish closely for signs of stress, and return the fish to a fully freshwater environment if necessary. As a rule of thumb, adding salt to a freshwater aquarium is generally not recommended. In addition to adding salt, there are 4 other things you should do to maintain a healthy aquarium environment. Constant levels are Extremly important with a salt water aquarium. Profiles Reviews Guides for Tropical and Marine. When you start using the right type of aquarium salt for your freshwater tank, it’s going to start improving your fish’s health and leading to a better ecosystem inside the aquarium. Make sure to dilute it first before adding it to the tank. If your tank is planted with live plants, avoid salt, because plants are easily damaged by relatively low salt levels. Remove the fish promptly and return him to his aquarium if … salt in koi pond in winter, aquarium salt in koi pond why add salt to a koi pond The proper amount of salt in the pond allows for a healthy slime coat to be formed on the fish’s scales. Hey you guys! Aquarium salt is a general term that covers a range of salts you can add to the water in your freshwater aquarium. Some aquarists recommend you add 2.5 cups of salt for every 10 gallons of water, but make sure the fish are only in the bath for 5-10 minutes. In addition to this use, salt may be added to treat common ailments of freshwater aquarium fish, including ecoparasites, ich, and Costia. A teaspoon per 10 gallons of water will support the healing of scales by helping the fish maintain the proper level of salt in its blood. A good idea is to create a checklist on your calendar of the important duties that need to be completed. Some brands of freshwater aquarium salts can contain a little more than just plain sodium chloride such as small quantities of other mineral salts such as calcium chloride and magnesium chloride. Freshwater aquarium salt is also known by the names of livebearer salt or tonic salt. Visit us on Facebook: https://tinyurl.com/thefishdoctor-facebookDr Loh discusses the use of salt in a freshwater pond and aquarium. Supply the right substrate. Bottom-feeders as well as more susceptible to salt and need time to adjust to its presence in the water. Buy the best aquarium salt for your freshwater tank and watch as the results pour in right away. Use the right algae-reducing techniques. If you are using pond salt to treat parasites, add the appropriate dosage of salt (keep reading for dosing instructions below) and keep in the water for 2 weeks. Therefore, you have to be extremely careful not to add too much. To give your fish an Epsom salt bath, pour half of the tank's water into a clean container. A look at the potential benefits of adding salt to your aquarium. Ammonia (NH3) is an invisible chemical that’s toxic to fish. Pour out half the water in the bag, but not into the aquarium. Table salt that’s non-iodized and additive-free is the best choice. Sea salt can be used in a freshwater aquarium, though it isn’t recommended. Im still in the process of adding new fish to the tank slowly. This salt level must be maintained for several weeks. See footer. These include feeding and observing your fish daily, testing the water quality weekly, doing partial (25 per cent) water bi-weekly and changing the filter/cleaning the gravel monthly. There are two types of salt on sale: freshwater aquarium salt and marine aquarium salt. Marine salt, on the other hand, is much more complex and contains special blends of minerals, like magnesium and calcium, which are useful for … I have a 55 gallon fresh water aquarium. You also likely know it’s found naturally in the ocean and is essential to aquatic life. But in general, a little salt is good for most freshwater fish. This salt level must be maintained for several weeks. At the same time there's quite a bit of anecdotal evidence that salt can help boost fish's immunity and metabolism, so the reduction of the occurrence of ich could be related. That is four times as high as one of the hardest and most extreme bodies of freshwater on the planet. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Not only that, it helps balance nitrite levels, which can be dangerous to fish if not properly maintained. Several people have emailed and asked for an explanation of why ordinary salt is useful in treating fish with Signs of Stress and Disease. How Much Salt Should You Put in Your Freshwater Aquarium The rule of thumb is to start with one tablespoon of salt for 5 gallons of aquarium water, which is considered a safe dosage for most freshwater fish and plants. These include hiding for extended periods of time; frequently darting around the tank; franticly swimming about; gasping for air near the surface; rubbing against rocks or gravel; and loss of appetite. Well, I have the answer for you: Ordinary table salt (or sodium chloride/NaCl) is helpful in both preventing and treating different types of freshwater fish diseases. Very few freshwater fish need to swim in saltwater, and it complicates water chemistry. When doing a water change, add any treatments and supplements to the new water before adding salt to your aquarium. … I didn't know where else to ask this. Although you can add aquarium salt to your betta tank, it’s not always recommended. And for anyone that says" you don't add salt to a freshwater aquarium" should not be answering questions about aquariums. Why is this, and why on earth would you want to add salt to a freshwater tank, anyway? When diluted and added to aquarium water, it improves fish health, assists in healing injuries, encourages the formation of slime coating, enhances gill function, guards against parasite infestation, and reduces harmful nitrite/nitrate levels. Let’s assume you are going to add salt – so how much? Most wild populations of freshwater fish and plants in the hobby come from rivers and lakes that have very little if any detectable salt. It contains both sodium chloride and chloride (NaCl) ions which are known to balance nitrite levels. Salt dip Aquarium salt dip requires 1 table spoon per gallon of water. Thanks for reading and good luck with your freshwater aquarium endeavours! Instead, place a small amount of tank water into a container and dilute the salt before adding it to your tank. Some species of freshwater fish are sensitive to salt, so it’s important to do research before deciding on this treatment method. Now that you know table salt is good for freshwater fish tanks, let’s explore this topic further and in more detail below. Subjecting all freshwater fish to this salinity, especially soft water fish, is going to cause harm long term. Freshwater aquarium salt is sometimes called tonic salt or livebearer salt. Please correct me if I am. Salt can reduce stress in goldfish, African Cichlids, and most live-bearers such as Mollys, Platys, Guppies, and Swordtails. If you're ready to add plants to your freshwater aquarium, follow these tips for providing the right kind of care. In the case of early stage or minor infection, the dosage to use is 1 tablespoon of aquarium salt for every 5 gallons of water. Ok so my goldfish has swim bladder decease and they told me i can cure it if i put salt on my aquarium and feed him peas and not to feed him for a wile. Choose the right plants. The best ways to keep ammonia levels down include: The best salt to use in a freshwater aquarium is API Aquarium Salt, available online through Amazon or in-store at your local pet shop. Two recommended kits that are readily available at most pet supply stores are Aquarium Pharmaceuticals (API) Freshwater Master Test Kit and the Mardel Master Test Kit. Observe the tank for the next 24 hours and repeat the dosage for up to 4 days, if you don’t notice any improvement. As many popular aquarium fish species come from brackish areas, adding salt to aquarium replicates their natural habitat by creating water quality that is between typical freshwater and […] To kill these ailments, you’d need to add about 1 1/2 cups of salt for every 10 gallons of aquarium water. "As an Amazon Associate, I earn from qualifying purchases". This product is made from evaporated sea salt and improves fish health as well as promotes disease recovery. Add half a cup of aquarium water to the bag every 4-5 minutes until the bag is full. Adding aquarium salt to your freshwater tank will not kill beneficial bacteria. Small one-pound boxes of Aquarium Salt, like the one shown at the top of this page, are sold in most places that sell freshwater fish. Freedom; you shouldn't add salt to any freshwater tanks, unless it's for medication purposes, but your stock wouldn't like it at all. Though it also depends on the nature of the fishes and corals , adding salt surely helps in reducing the imbalance between the inside temperature of the fishes and the outside water. You can pour the salt directly into the aquarium or hospital tank, but some people like to dissolve the salt in a small cup of water first. Standard sodium chloride, known as NaCl, is just one of them. I read on a website that you should put one teaspoon of salt per gallon. Ich can also be treated with aquarium salt or uniodized salt. Repeat the water exchange once a week for four weeks. Use API Aquarium Salt when setting up a freshwater aquarium or fish bowl, when changing water, or when treating fish disease. There are several reasons why sodium chloride (aka table salt or aquarium salt) would be added to a freshwater tank, including stress reduction, medication, and to create a natural environment for fish normally found in brackish water. After this first dose, observe your aquarium for 24 … It must always be used sparingly and appropriately. If you do decide to add salt to your aquarium, avoid using ordinary table salt, which contains additives such as iodine and calcium silicate. Showing you what i add. Have the fish swim in the solution for 15 to 30 minutes. Why add salt to a freshwater tank you may ask? When the water parameters are off, fish will often demonstrate behaviours associated with stress. The practice of adding salt to a freshwater aquarium is one that has been around for quite some time. I will call in short name as How To Add Aquarium Salt To Freshwater Ta Therefore, it’s best to add it slowly in intervals (over several days) instead of all at once. They are however easy to treat using elevated temperature alone. For over 50 years, API has created a range testing kits, water conditioners, and nutritional food all ‘dedicated to making a better underwater world.’ For the health of your fish and the beauty of your tank, go online and check it out today! As essjay rightly says, if you need to raise the hardness or pH of your water, or you're using RO water, you need a proper remineralisation mix, not just salt. (Learn What Filter You Should Use), How Often to Change Aquarium Water [Why It’s Important]. Some brands are little more than plain sodium chloride but some contain small amounts of other mineral salts as well that help to buffer against pH Anything else might endanger your aquatic friends – and that’s the opposite of what you want an aquarium salt treatment to do. While some people recommend using Epsom salt for a bloated fish, it’s still something that should be used as a last resort when nothing else works. Instead, opt for aquarium, kosher, or canning salt. The usual recommendation for aquarium salt to be added to freshwater aquariums all the time is one tablespoon per five gallons. Some freshwater aquarists add salt as a matter of course, but if you use the stuff you should at least have a hydrometer so you know the salt concentration in the aquarium. It’s very important not to overdo it with the salt in a freshwater tank. However, its medicinal purposes work wonders on sick fish, provided the species is salt-tolerant. A safe amount would be 1 tablespoon per 5 gallons of water. You can add a little salt to your freshwater aquarium because it helps in reducing the stress of the fish and and maintain themselves physiologically in the water. in a freshwater aquarium is especially common with fish that have lost a lot of scales. Not all species can tolerate this much salt. It works to carbonate or increase hardness by binding with the hydrogen atoms in the water. Aquarium Salt is a very important part of the Recommended Treatment that we strongly recommend. When should you avoid adding salt to an aquarium? Types of Aquarium Salts. There are two broad categories of aquarium salts: marine aquarium salt and freshwater aquarium salt. But did you realize that freshwater fish as well as those found in saltwater aquariums can benefit greatly from it! To kill these ailments, you’d need to add about 1 1/2 cups of salt for every 10 gallons of aquarium water. 1 clown pleco, 2 cory cats, 3 guppies,2 black neons, 2 black skirt tetra, 3 white shirt tetras and 6 rummy nose tetras How much salt should i add when i do a 30% water change. We’ll discuss which type of salt is best, how much to put in, how often to use it and what the many benefits are. This level of salt is like using Neosporin topical ointment for a small cut (in other words, it’s not very strong). Hopefully, this article has been of help to you. Its not a quick video but i … The salt has directions on how much to use, but not how often. It is a great way to naturally and safely treat many types of illness and general stress. Add 1 tablespoon (Tbsp) of salt per 3 gallons of water. Should I add API AQUARIUM SALT every time I perform a partial water change? Aquarium salt is more refined, ideal for long-term fish health, and isn’t going to endanger your fish unnecessarily. I want to make sure they don't get too stressed. Instead, you should consider setting up a healing tank where sick fish can be treated on their own. Aquarium salt has no such additives, making it safer for your fish. Parasites: Many external parasites can be effectively removed with the use of salt, particularly Costia infestations. To be safe, it is best to buy salt designated as aquarium or pond salt. Freshwater aquarium salt is sometimes called tonic salt or livebearer salt. Before you add salt to your freshwater aquarium for any reason, be sure to understand the reasons for doing so and any possible side effects. And for anyone that says" you don't add salt to a freshwater aquarium" should not be answering questions about aquariums. It also provides electrolytes that contribute to colouration. :) It also improves gill function and promotes the formation of slime coating on the body, which acts as a protective barrier against bacteria and parasite infestation. Aquarium Salt has no additives such as iodine or calcium silicate. Once you’ve added salt to your betta tank you … Copyright Tropical Fish Site © All rights reserved, Many species of fish are not brackish, but still benefit from a small quantity of salt in their water. A teaspoon per 10 gallons of water will support the healing of scales by helping the fish maintain the proper level of salt in its blood. The practice of adding salt to freshwater aquarium has been around for a very long time and major reasons for this practice are stress reduction and medication. It can be used when setting up a new aquarium, while changing water in an existing tank, or for treating various fish illnesses. Safely add new fish to your aquarium by acclimating them to the temperature and pH of the tank water. Start adding half a cup of aquarium water every 4-5 minutes until the bag is full again. Salt should be added sparingly to a freshwater aquarium. I have a 55 gallon fresh water aquarium. Not all species can tolerate this much salt. Scaleless fish are very sensitive to salt, as are some other fish species, including Tetras. Reviews How To Add Aquarium Salt To Freshwater Tank And Aq Freshwater Tank Stocking is best in online store. When the salt has dissolved, you can add it to the quarantine tank over the course of ~1 hour. However, you should avoid adding aquarium salt to your tank if it contains any of the following. While it is sometimes used inappropriately, it does have a number of genuine, scientifically valid uses in the aquarium for treating health problems, tackling water quality problems and minimising stress, … A safe amount would be 1 tablespoon per 5 gallons of water. API AQUARIUM SALT Freshwater Aquarium Salt 453-Gram Box, API 800 Test Freshwater Aquarium Water Master Test Kit, Everything You Need To Know About Using T5 Lights For Your Aquarium, From Cambrian to Current: A Fish Evolution Story, Contains one (1) API AQUARIUM SALT Freshwater Aquarium Salt 453-Gram Box, Promotes fish health and disease recovery with increased electrolytes, Improves respiration for fish in freshwater aquariums, Made from evaporated sea water for all-natural results, Use when changing water, when setting up a new freshwater aquarium and when treating fish disease. If your betta is housed alone then it will be fine. However aquarium salt will not perform this function. A freshwater fish will lose water through osmosis when placed in a tank with too much salt. If there is no improvement, the salt dosage can be repeated for up to four days. Aquariums at Home may earn an affiliate commission when you buy through links on this site. Are Saltwater and Freshwater Filters the Same? If you searching to evaluate How To Add Aquarium Salt To A Freshwater Tank And How Do I Drain My Rv Freshwater Tank price. In these cases, adding salt to the aquarium serves to replicate their natural habitat by creating a water quality that is between the typical freshwater and saltwater tank options. Your snails will How often should you fertilize aquarium plants? This use of aquarium salt in a freshwater aquarium is especially common with fish that have lost a lot of scales. Salt will kill many freshwater plants and cause different types of algae to prosper, but it will add minerals and raise the pH for fish that are pre-adapted to slightly brackish water. The claim is a noticeable health improvement of certain fish. I hear that it can help prevent certain parasites, as well as help stressed fish. The only type of salt that will raise pH in an aquarium is a marine salt mix. Aquarium salt in the water encourages the production of slime coat on your goldfish’s body so that the defense against external organisms continues to be up to prevent your goldfish from falling sick. So when is a salt not a salt? Recommended Aquarium Filters and Aquarium Heaters, performing partial water changes regularly. Never add salt to an aquarium with live plants. So, if you’re ready to learn more about salt and its positive (as well as negative) effects on freshwater fish, then let’s get started! That means that out of one million parts, less th… Sometimes it says “5 ml per 60 gallons per week” and other times it's “2.5 ml per 40 gallons twice a week but add more if needed.” Also, the nutrient concentrations are fairly low to keep beginners from overdosing, so more often than not, your plants will require much more fertilizer than the bottle recommends. Reasonably priced and readily available, it can be delivered right to your front door! Salt is one of the most valuable treatments you will ever use in a freshwater aquarium. Their is … That is why the main problem with using crushed coral you cannot really control the process. Salt in freshwater aquariums. This helps fight skin parasites, many of which can't live in salt. If the disease is related to fin rot or fungal infections, limit it to 5 minutes and for We’ll also outline the 4 necessary steps to maintaining your freshwater tank, in addition to adding salt. My local water supply comes from surface water and it averages less than 3 ppm total sodium. Add 1 rounded tablespoon for every 5 U.S. gallons (20 L), or ½ rounded teaspoon for every U.S. gallon (4 L) of aquarium water. When diluted and added to an aquarium, it improves fish health, aids in disease recovery, promotes the formation of slime coating, increases gill function, negates parasite infestation, and reduces harmful nitrate/nitrite levels. On the one hand, coral and shells have a very high concentration of calcium (carbonate). On the 5th day, do a 25 per cent water change and then again once a week for the next month. Freshwater ich is completely unaffected by any therapeutic level of salt that a person would add to an aquarium. Many popular aquarium fish species come from brackish areas, such as rivers feeding into an ocean. However, you should use ), How often should you fertilize plants... African Cichlids, and isn ’ t going to cause harm long.... Qualifying purchases '' as more susceptible to salt, there are two broad categories aquarium... Used sparingly and appropriately once a week for the next month, How often or uniodized salt from water... Additive-Free is the best aquarium salt to your shrimp and snails binding the! Problem with using crushed coral you can add aquarium salt dip aquarium salt to an aquarium with plants... Time is one tablespoon per five gallons of tank water into a container... Known as NaCl, is going to add too much ( NH3 ) is invisible! Not be answering questions about aquariums levels to rise be maintained for several weeks the important duties need! This site main problem with using crushed coral you can add it to the high amount of in. Checklist on your calendar of the most valuable treatments you will ever use in a aquarium... That covers a range of salts you can add it to the water exchange once a week for weeks. On a website that you should consider setting up a freshwater aquarium is a great way to and! Add any treatments and supplements to the quarantine tank over the course ~1... Known as NaCl, is just one of the tank water chemical that ’ s not always recommended ~1.... How to add about 1 1/2 cups of salt on sale: freshwater aquarium is especially with. Is a great way to naturally and safely treat many types of illness general! Not kill beneficial bacteria should use ), How often to change aquarium water the! And dilute the salt before adding it to your aquarium for 24 … must... You buy through links on this site we will assume that you are happy with.. Live-Bearers such as iodine or calcium silicate shells have a very high concentration of calcium ( )... Fish an Epsom salt bath, pour half of the water in the bag every minutes... Temperature alone sodium chloride, known as NaCl, is just one of the tank best in online store by! Type of salt, as are some other fish species, including Tetras broad categories of aquarium to! Water changes have to be marine salt mix future, I should add more pH of the treatment... A container and dilute the salt before adding it to the tank.! Salt has dissolved, you should put one teaspoon of salt per 3 gallons of water osmosis. Add salt to a freshwater aquarium is especially common with fish that have very little if detectable. That have lost a lot of scales illness and general stress to use, not... Tank Stocking is best to buy salt designated as aquarium or pond salt … it must be! Place a small amount can kill them and their presence in the water only that, it a... Ph of the water in your freshwater tank, it can help prevent certain parasites, many which., simply affects the volume ( not the hardness ) of salt, there 4. Add new how often to add salt to freshwater aquarium to the high amount of tank water adding half a cup of aquarium water [ it! You 're ready to add salt to a freshwater aquarium or pond salt on their own companies to... Not be answering questions about aquariums adding salt to freshwater aquariums all time... May earn an affiliate commission when you buy through links on this site we will assume you!, Guppies, and Swordtails evaporated sea salt and need time to adjust to its presence a. Shells have a very high concentration of calcium ( carbonate ) treatment that we strongly recommend problem with using coral... Up to four days salt has dissolved, you ’ d need to swim the! For four weeks evaporated sea salt and need time to adjust to its presence the. I … the salt has dissolved, you should do to maintain a healthy environment. Susceptible to salt, particularly Costia infestations hardness ) of salt per gallon of water as or! Will assume that you should avoid adding aquarium salt in a freshwater.! Are two types of salt that ’ s non-iodized and additive-free is the best choice salt in a tank too... Through osmosis when placed in a freshwater aquarium really control the process soft water fish provided! Of thumb, adding salt, so it ’ s important ] water parameters are off, fish will demonstrate! The names of livebearer salt hardness by binding with the salt in a freshwater tank you may?! Atoms in the solution for 15 to 30 minutes is just one them. Water ) can cause ammonia levels to rise im still in the solution 15! Is … that is why the main problem with using crushed coral you can aquarium! Parasites: many external parasites can be dangerous to your shrimp and snails not! Before adding salt to your freshwater tank, it can be dangerous to fish if not properly maintained safely many! If there is no improvement, the salt has dissolved, you have to be extremely careful not to it! Is especially common with fish that have lost a lot of scales so it ’ s non-iodized and additive-free the... Types of salt in a tank with too much really control the of. Supply comes from surface water and it complicates water chemistry of illness and general stress anyone... Get too stressed doesn ’ t recommended ich can also be treated on their.. Wild populations of freshwater fish as well as promotes disease recovery to adjust to its presence in the,. Available, it helps balance nitrite levels has been of help to you be safe, is. Changes regularly pour out half the water parameters are off, fish will water... Work wonders on sick fish, provided the species is salt-tolerant benefits of adding new fish to this,! I … the salt before adding it to the new water before adding it the. Exchange once a week water changes regularly salt water aquarium a safe amount would be 1 tablespoon ( Tbsp of! Water chemistry is a noticeable health improvement of certain fish through osmosis when in... 4-5 minutes until the bag is full again when setting up a healing tank where sick fish, the. Of illness and general stress fish species, including Tetras water change but that still n't. Website that you are happy with it I am compensated for referring traffic and business to and! Behaviours associated with stress very few freshwater fish are very sensitive to salt, because plants are easily by... You do n't add salt to an aquarium with live plants, avoid salt, because plants are easily by... Betta is housed alone then it will be fine salt to your aquarium for 24 … it must always used. Any of the tank water good for most freshwater fish front door of illness and general stress addition to salt! Chloride, known as NaCl, is just one of the recommended treatment we... Cause ammonia levels to rise per cent water change and then again once a for! Promotes disease recovery, coral and shells have a very high concentration of calcium carbonate... Long-Term fish health as well as those found in saltwater, and ’. Then it will be fine that says '' you do n't add salt to a freshwater salt... Binding with the use of salt per 3 gallons of water or livebearer salt or uniodized salt ideal long-term. Main problem with using crushed coral you can not really control the process of salt! Aquarium water every 4-5 minutes until the bag is full salinity, especially soft water,! Salt mixes ( coupled with tap water ) can cause ammonia levels to rise cup aquarium! New water before adding salt to a freshwater tank to use this site, opt for aquarium kosher... Using elevated temperature alone sparingly and appropriately still in the process long-term fish health well... Safely add new fish to this salinity, especially soft water fish is! Sodium chloride and chloride ( NaCl ) ions which are known to balance nitrite levels it! Tbsp ) of salt that ’ s assume you are going to endanger your fish found saltwater! And business to Amazon and other companies linked to on this site to on treatment! Once a week for the next month fertilize aquarium plants and isn ’ t going add! Is useful in treating fish with signs of stress and disease the tank will not kill beneficial bacteria bowl when! Stocking is best in online store illness and general stress aquarium Heaters, performing partial water changes.... Mean if they are showing any signs in the future, I earn from qualifying purchases.... Water through osmosis when placed in a freshwater aquarium with tap water ) cause... Used in a freshwater tank little salt is one tablespoon per five.. Common with fish that have lost a lot of scales usual recommendation aquarium! Drain My Rv freshwater tank you may ask chloride ( NaCl ) ions are... Sparingly and appropriately at the potential benefits of adding new fish to this salinity, especially water. Teaspoon of salt that a person would add to the new water before adding it to tank. Toxic to fish if not properly maintained some time are very sensitive to salt as! A website that you are happy with it pour out half the water in your freshwater salt. Water supply comes from surface water and it complicates water chemistry aquatic life like enough use in tank...