Although this is true for most people who have no experience in keeping this kind of fish, you will see that keeping this fish is rather easy if you get the basics right. After you understand the basics of keeping this kind of fish, you will see that it s quite easy to keep Discus Fish in your fish tank. First of all, you have to keep in mind that discus fish originated in the Amazon River basin. They thrive in streams and lakes surrounding the Amazon River. They also come from the cichid family of fish and they like deep water. For this reason alone, you may want to get the largest and deepest aquarium that your home and budget can allow. 50 percent of the water should be changed every week and you have to keep the water free from chlorine and heavy metals. To do this, a water purifier will be able to do the trick. Keep in mind that Discus Fish thrives in the Amazon River basin where the water is slightly acidic and soft. So, keep the PH level of the water lower than normal. When you have finally established your discus fish breeding tank, transfer some of the water from your original tank, this will prevent your discus fish from experiencing stress in being exposed to a new tank. Don t put any gravel or sand inside your tank, this will make it easier for you to clean your tank from leftover food. This is to prevent them from introducing bacteria, parasites, as well as other types of diseases that can be transferred to other fishes inside the main tank. If the quarantined fish do not show any signs of illness after two or three weeks in the quarantine tank, you can introduce them to the main tank. An adult discus fish is much more expensive because you re paying for the convenience. You don t have to wait anymore for them to grow up and you already get a head start at breeding the discus fish. So only go to a trusted dealer to ensure that you will indeed end up with a pair. Your third option would be to learn how to determine the sex of a discus fish and going to a pet or fish shop.