Discus Fish Disease: How to Deal with Them As a hobbyist who is currently taking care of discus fish, you have to remember that aside from knowing how to raise them, you also need to know about the diseases that may afflict them. By learning about the different kinds of diseases that may affect your discus fish, you will be able to tell if your discus fish already has the disease and also know how to treat them. As with any fish, your tank should be kept clean at all times. No creature would like to live in a dump. If you notice that your tank s water is getting dirty, you should change it. You should always clean your tank of leftover food. 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. This is why you have to consider the size of the tank where you intend on keeping your Discus Fish. You have to try getting the largest aquarium that you possibly can in order for you to easily maintain the water quality. You may already know about the nitrogen cycle. You need to consider the fact that this is very important whenever you intend on keeping any kind of fish in a fish tank or aquarium. Even if you don t have a big backyard for your dog to play and exercise in, a good corner with about a meter or two of space is enough for you to have a relaxing aquarium to look at. You don t have to train them, and side from the occasional cleaning, they can be kept wherever they are already placed. Do give your discus fish an area in the tank for them to spawn. Discus fish lay their eggs in a flat vertical surface area at the bottom of the tank. Some use certain plants while some say that an overturned pot will do. Do vary the diet of your discus fish. When your fish are breeding, a varied diet is important to boost their reproductive system upping their chances of spawning. And, you have to keep in mind that Discus Fish are rather sensitive when it comes to water quality. Water quality is very important if you plan on keeping a Discus Fish. Try to keep the water clean and also its chemistry stable. You have to at least change 50 percent of the water once a week and you have to make sure that the PH level is also stable.