Gotcha, gotcha. Thanks for the info. I've been reading up on it online. It seems like they've got less spots today, which is nice, but that means they're in the substrate at this point, right? In any case, I've got the water line a little lower than normal, and the heater kicked up to 85.
I don't see any more white spots on the fish, but I'm going to keep going with treatment, like you said. At the moment, I'm just using heat and cleaning, so hopefully, that'll keep these parasites under control, but if not, I'll go for the salt (actually, I'd like to pick some up tonight) and methylene blue. My beautiful longfin's missing some chunks out of his/her fins. Any thoughts?
Thanks again for your advice!