Keeping a Discus Fish aquarium is a lot of fun. However, you have to remember that you need to treat them differently than other types of freshwater fishes as these species are considered to be high maintenance and that they need to be watched over constantly. Keeping Discus Fish are quite easy to do. This is quite advantageous and will make it easier for you to maintain the quality of water but they are not really considered as a necessity. You have to remember that reverse osmosis filtration unit cost a lot of money. And, if you are just starting out raising discus fish, you will see that the price of this kind of filter is enough reason not to put one in your tank. 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. Although first timers will find it difficult to care for discus fish, you will soon get the hang of it and start taking care of discus fish easily. You have to remember that discus fish need very specific living conditions and diets. Many fish enthusiasts even say that beginners should not attempt to take care of this kind of fish as it will just frustrate them especially if they don t know what they are doing. First off, you have to realize that the discus fish is not just like your ordinary goldfish, they can be quite costly and selling their fry has the possibility of making them money. You too can be able to venture in this, providing you know what you are doing. Some would say that breeding discus fish can be very difficult, well, if you make the most common, and sometimes most obvious mistakes, then you may just end up spending more and just plainly waste your time. You need to remember that juvenile Discus Fish are far more sensitive to water quality and food quality than adult Discus Fish. You also have to know about the dealer quarantine. 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.