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. You also have to remember that if you want to keep your Discus Fish happy, you have to keep at least 6 Discus Fish together in the same aquarium. The size and shape of the fish tank is also important. Discus Fish prefer a tall sized tank. So, you will want to get a fish tank that is taller than longer. Although most internal parasites in discus fish may not cause serious threats, you have to remember that these parasites can eventually grow uncontrollably, which can cause serious problems for your fish. A symptom of discus fish having internal parasites is that they may produce white feces. Emaciation can also occur and is also considered as a common symptom of internal parasite. 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. If in a cramped space, this can lead to fighting and injuries. You may add some ornaments in your tank. Although they can survive without them, ornaments wont only make your aquarium look good, but they can also provide shelter for them for their protection and for their spawning. Also, some plants can help clean the tank. In fact, most of us would instantly depict n image of a dog inside our mind, or maybe even a cat. But many homes today do have fish tanks and they are not just for ornamental or design purposes. Yes they do look good, that is a given. Fish tanks and the fish themselves are also effective stress relievers.