@Lauren A @NanoNano Sorry, I meant to update Friday but life got in the way, as it does, lol. Thursday, I put in another .5 tbsp of salt and some IAL tea. The water is now a light/medium brown. The cysts seemed to shrink even more and my nerite seems to be fine so far with the tannins (although I haven't done a ph test yet). There are still cysts, so I might keep the salt in there for a while, but he's definitely improving. And no signs of fungus or other infections so I think the tea is taking care of that. He seems even more hungry than usual, and he seems to move around with more ease. My plants seem to be fine (pearl weed, salvinia, buce, and crypt) Salt is really amazing.