Use when: Mouth and fins appear to be rotting away; white cotton wool like growths are visible on the fish; the fish flick against solid objects; fish gasp at the surface or appear to be covered in slime or white spots. Acts against: External fungus, bacteria, white spot and slime parasite problems.
Active ingredients per 100mls: Formaldehyde 5000mg, Methylene Blue 19mg, Malachite Green Oxalate 216mg
