Personally, I just use 30-50% water changes to avoid all those problems, and daily ones if I have any fear at all--that is just simply my preference. I do make sure I have adequate levels of the meds after such a change.
Others may/may-not use different methods with good results--I have no interest in restarting/continuing "religious wars" over such personal preferences.
I should have already pointed out, I normally do not use over-the-counter fish meds. I have friends in the medical industry who supply me with prescription antibiotics who have out lived their shelf dates. So, I tend to know meds by the name of drugs commonly prescribed to humans. Also, my sisters husband owns a small ranch. He frequently gives me bags of medications bearing such names as Aureomycin, Tetracycline, Penicillin IV, etc. So, the treatments I have worked out, usually in mg's per gallon, have no counterpart in what would be recognized here. I am not just "trying to avoid the subject. For instance, I have a bottle of 300mg of Clindamycin capsules I would use to treat the disease I believe you have, if were my fish (I have learned NOT to diagnose others fish diseases, or recommend treatments, either (well, sometimes I will break that rule--I have made some enemies that way!)
Regards,
TA
