So, here are some simple tips that will help you keep your Discus Fish alive and healthy for a very long time. For starters, you have to make sure that you keep at least six Discus Fish together. You have to remember that Discus Fish are shoaling fish, which means that you have to put them in groups. The depth and the volume of the tank will be based not only on the size of the fish, but also on the swimming habits of the discus fish. A deep tank is usually the norm, 18 inches would suffice. With the volume of water, most discus fish experts would agree that for each discus fish, 10 gallons would be necessary. If you love discus fish, you may have considered breeding them at one point of owning them. Aside from the fact that you will be able to increase the population of beautiful and colorful discus fish in your aquarium, they can also be a source of extra income as you can sell the juvenile discus fish. However, before you actually consider breeding your discus fish, you need to remember that breeding them can be a challenge. In their natural home, discus fish usually thrives in water with temperatures between the range of 28 and 31 degrees Celsius. Any higher or lower than these temperatures will be enough to kill the fish or not let them survive for long. This is why you may want to invest in a water thermometer in order for you to constantly monitor the water so it won t exceed or drop below the required temperature. So, keep the water temperature in your tank between 84 to 86 degrees Fahrenheit. You can use a water heater in your tank to keep the water temperature stable and you should also invest in a water thermometer in order for you to constantly monitor the temperature. The environment in the aquarium should mimic the natural habitat of the discus fish. Some people may find keeping discus fish very difficult while some find it easy, but it s all about discovering these secrets which spell the difference, and one of the biggest secrets is the environment which the discus fish lives in. First off, you need to know that the discus fish has a shy character.