My first batch was 4 pairs of Pigeon Blood Discus. When I had bought them I didn't know they were Pigeon Bloods ( neither did the pet shop owner !). I had then for 6 month and one of them grew really fast. Unfortunately they all died suddenly. I couldn't even look at the empty tank.
So I bought my next batch. Its been 2 months since I ve bought them and everything fine for the moment. I love them ! Discus fish used to be my dream fish whom I wanted to have ever since I had seen them for first time. So now I have them !
( Ok. They are not mine, Just wanted to add a pic ! )