When it comes to feeding, make sure that you don t over feed them. By ensuring these things, you will see that your discus fish will grow healthily, which will essentially mean good color development. Always keep in mind that before you actually purchase a discus fish and place them in your aquarium, make sure that you know how to take care of them and make sure that you are responsible enough to care for them. This will do the job in taking out the chlorine as well as other chemicals present in the water. Keep in mind that discus fish thrive in softer water. If your tap water is filled with chemicals, then the fish will not survive that long. You also have to remember that discus fish likes to live in large areas of water. However, you will find that keeping them can present you with a challenge. You have to remember that discus fish are very sensitive when it comes to the water quality they live in as well as the food you feed them. So, here are several tips that you need to remember in order to keep your discus fish happy and healthy. A good diet must be a varied diet, which can include some blood worms, beef heart, tetra pieces, and some frozen or fresh brine shrimp. Remember not to over feed them and to clean any leftover food. If left inside the tank, the food can turn the water and sicken the discus fish. And with any fish, the water is the most important. The 2 Things that you Should Concentrate on When Discus Fish Keeping When talking about the health of the discus fish, there are really only two main aspects where great concern should be focused on. These two will dictate highly whether your discus fish will be able to spawn or let alone be healthy and live a long life. They live in groups in their natural habitat, which is why you need to have at least 2 or 3 pairs of breeding discus fish in the breeding tank. As for the tank itself, you have to keep it clean and simple. Never overcrowd the fish tank with ornaments. A few plants and rocks will do as it will serve as places for them to hide.