Over the weekend I euthanized a Dario Loach that was doing the death spiral, and now my fish seem to have ich!! WTF!! My Ctenopoma has a decent amount of it, my Yoyo Loaches might have some, and I saw my Flash Pleco scratching himself on a rock!! What do I do?? I can't just treat the tank like I normally would because of the Loaches and the Plecos. I moved the temperature up to 86 or so, what else should I do??