feeding of New Life Spectrum Thera A - Anti Parasite food.
That is a very good food from what I have read.
It does sound bacterial as they stated. I would not qt
him yet, but do 3-4 large water changes with mixed (24hrs) and aerated sw
, temp, sg
) - do one every few days for the next few weeks. Also clean any filters or areas that may collect waste. You can also run activated carbon or a polyfilter to help expedite things (cleans the water of stuff bacteria thrives on). Just keep the water quality extra high by these water changes and he should heal on his own. Medication is only a last resort for infections, and never put it in the display tank. This is easier and safer than going the QT
route; it also addresses the root cause. A skimmer is also good going forward (if not being used already).