Params are all fine, I saw him picking at some zoas last night, and walking all over, as well as maybe stuffing a piece on his mouth. Would this be a potential cause?
Shrimps don't live terribly long in general. I think I've read 2 or 3 years most of the time. So if it was larger maybe it was getting there. But yeah possibly just a molt. Sometimes fish will pick on them any wrasses ?
lol, My halloween crab molted the other day for the first time... It never had before and I never knew it could. Thought it died.. was bummed out... then saw him crawling around a few days later.