I got my MBU about 8 months ago at 4" and had him in a 60 gallon. It had a AC70, a Fluval 305, a FBF 300, and a 40 gallon sump/ snail breeder. I was doing 5 gallon water changes every other day. Every time I checked the tank the parameters were perfect. 0 nitrate, nitrite, amonia. PH 7.2. He has always had a bit of one cloudy eye. I treated the tank for ick and with primaflex and melaflex, and his eye never seemed to clear up. He is now about 6" long and started buring himself in the sand last week and looking stressed so over the weekend I moved him over to his 240 community tank. The parameters are still the same as his 60, but he still can't seem to hunt his food right. I feed him snails and market shrimp and he is very happy with his new living space but every time he goes to hunt something he strikes at it and misses. His one eye is still just slighty cloudy like it always has been. Is there a chance he is blind and just hunting off smell.