I had one I caught off my dock here. For awhile I fed my tank mysis since I had pipes that loved it and the clingfish would come out and eat with gusto. Then after my last pipe went carpet surfing(who would have thunk it?) I never saw him again even though I fed the tank flake for the other fish. I dont think he ever ate flake and I never saw him. About a year later I got another fish which required a more special diet and again I added mysis and lo and behold the clingfish appeared. What he ate during that one year time frame beats the heck out of me, but he was definately bigger than the last time I saw him.