“This stuff is used by a few pros so it obviously works.. it didn't work on my Neon Tetras fin rot, but nothing else did. Just be aware this is seriously staining stuff.. only use it in a hospital tank, and even then be wary that things like airlines and decoratrions etc will be permanently green. Note that a good bleach wash on some stuff did work and a few days later its ok.. but just minimise whats in the tank.”
