I think it may have came with the 1st cleaner I got that died, got it from a LFS in Albany, which was my 1st (and only) purchase from there, since then all down hill. Got a 2nd cleaner else where and he's the one trying to clean them all up just before they die :-?
I think the worst thing about marine fish keeping is trying to diagnose problems, I feel guilty that I cant figure it out.
I have my female clown, bangaii and YTD left and the deaths were both new and existing fish. Mate she's a tricky one to solve