Use API Furan 2 which is very good for this. If you don't see results after 3 days (post pics) combine with Kanamycin or posibily we'll switch to Neomycin. Do not mix any other meds without asking first as they could end up being a toxic combination this is important. Without benafit of a microscope to see which one of the two this is we have to proceed one step at a time but we'll get it fixed.