I have some Discus from Discus Madness. I bought larger ones, but I was there and saw Mathias' Discus tanks in person and picked out my own fish. Mathias has beautiful Discus, his fish room and tanks are spotless and orderly. Mathias himself is very helpful before, during and after your purchase. I recommend Discus Madness. I've read some negative stuff on this forum because Mathias did sell Discus that are considered low quality Discus to people who asked if they could purchase "culls" because they were just starting out and did not want to or could not spend a lot of money on Discus. But, its all in how one views things and it is certainly not the norm as to what Mathias sells.