Some of these Qs are repeative, but we need more info to know what's going on.
Answer these Qs to ensure we have as much information as possible about your ailing fish and its environment:
1~What type of fish is afflicted? In addition, please describe what is wrong with the fish to the beset of your ability (i.e. cotton like growth, bloated, etc.).
2~What are your tank parameters (ammonia, nitrites, nitrates, temp, pH)? Please give exact values. (from main tank and
QT tank)
3~ How large is the tank? How long has the tank been set up? (before you moved it to
QT)
4~What type of filtration are you using? Please give the name and number (i.e. Fluval 304) and amount of
gph if known.
5~How many fish are in the tank? What kinds of fish are they and what are there current sizes?
6~When is the last time you did a water change and vacuum the gravel? How often do you do this? How much water do you remove at a time?
7~How long have you had the fish? If the fish is new, how did you acclimate it/them?
8~Have you added anything new to the tank--decor, new dechlorinator, new substrate, etc.?