White Cloud Mountain Minnow (WCMM) "resting" On Bottom Of Tank

Thanks, I will dose tomorrow, keep an eye on the little fella, then big water change before dosing with the new stuff. I'm hoping that he hangs on for long enough for the medication to work.

Aw - very sorry to read about this.   Hope it's of some consolation that you did everything you could possibly have done and gave him every chance for a 'turnaround' (which can often happen but sadly didn't in this case).

From what you've described, it sounds something along the lines of what my pygmy cories died of and I don't think that there's anything nasty/infectious going on, otherwise the other WCMMs/tankmates would be displaying signs of this by now. If you've siphoned the substrate in much the same way as you do in a normal water change, I'd say that should suffice. The log, airstone and filter could perhaps be soaked in over-dechlorinated water as an extra precaution, although I don't think it's necessary.

Sorry the little guy didnt make it Donna, sometimes besides our best efforts we lose fish and it's always saddening

Thanks all.