There are several questions that always seem to follow a query on Cory health. So it goes without saying that the poster of such a health question should provide as much of this information as possible in the initial post. I have made a list below of the information required. And if possible a positive ID/pictures of the fish concerned.
1. Water parameters a) Temperature range. b) pH. c) GH. d) KH e)Ammonia, Nitrate, Nitrite, levels. f) Water change frequency (Most LFS's will check your water and give a list of readings).
2. Tank set up a) Size. b) Substrate. c) Filtration. d) Furnishings. e) Other tank mates. f) How long has it been set-up?
3. Symptoms / Problem description
4. Action taken (if any)
5. Medications used (if any)
Any posts without this sort of information added will tend not to get a quick reply (or reply at all). Please help us to help you.