Discus.switch discus fish aquarium on Instagram: "Here we go by popular demand. After 5 years Im summing up what Id do differently if I was starting again. And first up its your fish. Im assuming we can all maintain an aquarium, understand the nitrogen cycle and water parameters and have a suitably sized tank and quality equipment. I was scared of these fish and that was my main issue. Because of that I bought cheaper, poor quality fish from a fb page to start. If Id have done better research, a