Before, because of its limited supply, only a selected few would be able to get their hands on a discus fish, let alone a handful of them, luckily today, many are now able to get their hands on them, and if you re one of those lucky persons, then you should know how to provide them a good environment so that they can leave healthy and stress free. And if you re not that experienced yet in maintaining a fish tank, keeping discus fish can be quite complicated. But if you ask many long time discus fish owners, they will tell you that these problems will be only in the beginning, and all your efforts will be rewarded with a beautiful and mesmerizing fish. Just make sure that the discus fish are the largest fish in the tank. When it comes to their food, discus fish can be fed with aquarium foods. You can feed the discus fish with frozen bloodworms and brine shrimp. Adult discus fish can be fed once a day but juvenile ones should be fed at least 3 times a day. 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. By asking these questions, you will be able to have a good idea about the background of the fish. Lastly, you have to take a look at the aquarium chemistry. Make sure that you ask the dealer about the current water condition that the Discus Fish you plan on buying is currently living in. You also need to make sure that the detritus is removed on a daily basis along with any uneaten food as this will produce ammonia in the water, which will potentially make the Discus Fish ill or possibly kill it. The PH level of the water is also very important. Because Discus Fish thrives on a more acidic type of water, you have to keep the water PH level between 5.5 and 6.8. They can also cause heavy breathing and irregular swimming, which can eventually leave your discus fish totally paralyzed and sink down the bottom of the tank. To treat gill flukes, you can use formalin. Also, although infested parents can still spawn, the offspring can eventually get the parasite, which can cause very serious problems.