This means that the water should have an acidity level of pH 6 and it should also be soft water. These are the things that you need to remember when you are planning to keep discus fish as pets. Always keep in mind that water chemistry is always important when you consider taking care of these types of fishes. The first thing that you need to remember about Discus Fish is that they love to swim. They need to have some space to roam around in the aquarium. Because of this fact, you have to keep one Discus Fish for every 10 gallons of water. Be sure to avoid overcrowding the aquarium, especially with this kind of fish. This is the time where the dealer obtained the fish and the time they decide to sell the fish. The longer the dealer quarantine is, the better it will be for you. Usually, the fish should be in quarantine for at least 2 weeks. This is to make sure that the fish is not spreading any diseases. Also, you need to make sure that the dealer tells you if the fish have been subjected to medicines or if they have been de-wormed. So that you wouldn t be bothered of cleaning your tank or changing the water often, you could add some sufficient filtration system, some lighting, or maintain some bottom dwelling fish to help clean up the tank. If you don t know yet how to maintain the temperature and pH levels of your tank water, then it is not recommended for you to own a discus fish yet. You should also avoid placing the tank in areas in your home that gets too much traffic. This will simply subject your discus fish with high levels of stress, which will eventually mean that they will be more prone to sickness. Lastly, make sure that the fish tank resembles the natural environment where they lived before. Helpful Tips That Will Increase Your Discus Fish Population If you re thinking about keeping an exotic fish, you should consider getting a Discus Fish. They are considered by a lot of people as one of the most fascinating fish species that you can ever have. Discus Fish are so beautiful that because of the demand for it in the market, one Discus Fish alone can cost you hundreds of dollars.