Active ingredient: Acriflavine chloride 3,200 mg + malachite green oxalate 79 mg per 100 ml
How to use (from the label): Shake. Single dose of 1 ml (22 drops) per 20 L. If there is no visible improvement after 7 days, filter 24 h over activated carbon and repeat. Aerate well, switch off UV, no activated carbon during treatment. Seven days after the last dose filter 24 h over carbon, then do a partial water change.
Careful: Not tolerated by cartilaginous fish (rays). Knifefish, loaches and catfish are very sensitive to malachite green. Overdosing or dosing too often damages soft-leaved plants. Do not combine with other medicines. Do not swallow; avoid contact with eyes, skin and mucous membranes; it can stain.
Rules: Not for animals kept for human food. UK: sold under Schedule 6 (small pet animal exemption) of the Veterinary Medicines Regulations. Switzerland: category D, Swissmedic 69823. Malachite green is not FDA-approved for food-producing aquaculture animals in the US.
Never mix medicines unless the label says it is safe, and remove shrimp and snails unless the label says they are safe.
Examples you may see in shops: sera omnipur A. Not endorsements. Always follow the label.
6 facts checked with sources