Ok, so I have read through this entire thread and I now have a few questions. I bought a green severum and placed him in my new 125g tank with my oscar, african cichlid, tiger barbs, pictus catfish, bumblebee cichlids, bala sharks, and pleco. All the fish are small right now. The green severum was looking beautiful until this morning when I got home from work. He developed something all over his body just over night! It looks like ich but I really dont know for sure. I have now quarantined him to a 10g tank and used a med to treat him. I am also raising the temp on both tanks. I keep my 125g at 78. I'm slowly raising the temp now. Do u think this is ich? It looks like crystals covering the severum's entire body. Any suggestions?