I've had him for 90 days, I have a hippo,starry blenny,diamond goby,2 spotted manderins,6 chromis,pair of clowns. He was fine then it was like it happened in a moments time. Nothing has changed,peramiters are In check. I think he's just dying. I tried to catch him to feed to my long tenticle anemone in another tank but he's elusive.