Unfortunately, the growth has gotten slightly larger since I discovered it on Monday. If you don’t mind me asking, why do aquarists call these growths fungal infections if it is actually a gram negative bacterial infection? Would you recommend I carry out my planned treatment as well as acquiring Kanaplex in case that doesn’t work? Also, I would love to know the mortality rate for issues like this. It was quite obviously caused by poor water quality, and that has since been fixed. I feel as if I have caught it early so I personally believe I have a strong chance of healing my L-114."Fungus" is generally gram negative bacteria so a gram negative antibiotic is required. Seachem Kanaplex is a good one to start with since it is readily skin absorbed. Have it on stand by if the infection gets worse in the next 3-4 days.