I just put a Tetra Parasite Guard tablet in my home tank. It fizzes and dissolves in the water. At first, my fish were enjoying the current from the fizzing XD. Also, after I transferred my Cryptocoryne Wendtii from the old tank to the new tank, I learned it was likely to wilt and appear to die without actually dying or might actually die because of the transfer. I have two bits of it. They apparently said to themselves, "Never mind what everyone else says we're gonna do, our leaves are gonna be further up now."