I had a rockbeauty for 8 months, he was a great fish, ate everything and very active. Then one day he just stoped eatting, from everything I had ever read this is what happens to them. I try to treat him, but no luck he would never eat again. I thought I was doing everything right feeding him a good diet, with alot a spounge. Everything I have ever read about the rock, said that was going to happen, it was a major loss, I really loved that fish. I am glad to see that pufferlovers is still doing well. Good Luck