New betta sick, please help
Our recently acquired male betta (Petco) has developed a white cottony substance around the tail area (parasites?) and has lost his tail fins and most of his fins underneath. He was in a 6-gal Eclipse tank, 80 degrees, some plants, no other fish. Was doing great for a week, but then I removed a lava rock I thought might damage his long fins and instead put in a little round ceramic pot for him to hide it. The pot had been used in an indoor water feature, I had wiped it with a damp cloth before using but I'm wondering now if I should have somehow sterilized it? He seemed to really like it, spent lots of time in there, but the next morning he had developed this fuzzy growth that I have read is possibly parasites?
I raised the temp to 82 degrees and gave him a 60-second salt bath, also did a 50% water change. Today he has lost more fins and has trouble swimming so I put him in a much shallower container with salt added and will give him another salt bath tonite.
Is there any hope for this little guy? Am I on the right track here? I've read their fins will grow back but I don't want him to suffer. Can anyone help me with this? We would greatly appreciate it. You have all given us good advice so far, so thanks in advance.