Do you have a mechanical filter? With mine I had to run filter floss, without my water was cloudy. However, I have had 2 and couldn't keep them alive in my mature 75. Both lasted for 2 or 3 months and were eating mysis and whatever else I put in the tank. They still got thinner and thinner over time. I saw both of them eating, but evidentially not enough. I was breeding tons of pods in my fuge, but not enough to keep up I guess. At times they would put on more weight, but in the end . . . . . I wouldn't buy again unless I was committed to purchasing pods on a regular basis to keep him fed. Or maybe many feedings per day would help? OR maybe couldn't outcompete my other fish (clowns, wrasses. . . . )? Awesome to watch, but unless committed to the previous I wouldn't recommend.