I agree, tiger, it's contrary to basically everything I've read as well. I'm simply saying the precedent in the group is certainly there (and very common at that) and the biological mechanisms are effectively already in place. So it isn't outside of the realm of possibility. I guess we'll find out in a few days if it is ich or if it's flukes. If it's a resurgence of flukes, it would explain why malachite did absolutely nothing to treat it!