Effective Ways to Help Keep Your Discus Fish Free from Diseases The aquarium is not typically what you would first think when talking about pets. 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. Although Angelfish can look great with the discus fish, it is not recommended for smaller discus fish tanks. This is because Angelfish can grow very large and can bully the discus fish. They may even outcompete the discus fish for food and they may also carry diseases that the discus fish are prone to catch. You should also always keep your tank clean and soft, keep away heavy metals and invest in a good filtration system or purifying unit. Keep the water slow moving and with temperatures between 82 to 86 degrees Fahrenheit. When adding other fish to your tank, make sure that your discus fish is the largest in the tank. However, before you start to attempt raising discus fish, it is important to know that discus fish can be quite hard to keep especially for people who are just starting out in this kind of hobby. You need to remember that discus fish are temperamental creatures that need special care. They are very sensitive when it comes to water quality as well as food quality. 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. They live in groups in their natural habitat, which is why you need to have at least 2 or 3 pairs of breeding discus fish in the breeding tank. As for the tank itself, you have to keep it clean and simple. Never overcrowd the fish tank with ornaments. A few plants and rocks will do as it will serve as places for them to hide.