Hi guys,
New to keeping butterflyfish. I noticed 4 days ago that my heniochus acuminatus suddenly had some type of wound/lump on the upper part of its mouth. The fish is still very active, eating a lot and hasn’t shown any signs of rubbing/twitching. Fins are looking good and the spot hasn’t changed size.
See no fuzzy/cotton like growth
Looking at my pictures it looks like it appeared overnight.
Currently I am dosing seachem stressguard to see if this has any effect. Is this just an injury?
Also, I have colombo FMC-50, is it possible to use this in half doses for marine fish, considering it could be bacterial/fungal? (Fish is in a tank with no inverts or corals)

New to keeping butterflyfish. I noticed 4 days ago that my heniochus acuminatus suddenly had some type of wound/lump on the upper part of its mouth. The fish is still very active, eating a lot and hasn’t shown any signs of rubbing/twitching. Fins are looking good and the spot hasn’t changed size.
See no fuzzy/cotton like growth
Looking at my pictures it looks like it appeared overnight.
Currently I am dosing seachem stressguard to see if this has any effect. Is this just an injury?
Also, I have colombo FMC-50, is it possible to use this in half doses for marine fish, considering it could be bacterial/fungal? (Fish is in a tank with no inverts or corals)


