Broad spectrum anti-bacterial remedies effective against fin rot, mouth fungus, dropsy, skin ulcer, wounds, and all bacterial infections. Safe to use with all aquatic animals. Bactonil fw shows significant difference in 12 hours of treatment. Dosage : 10 ml 100 litrepacking : 60 ml, 120 ml, 220 ml, 500 ml, 1 litre and 5 litre