Active ingredient: Phenol (< 2 %) and resorcinol (< 5 %) in aqueous solution (hazardous ingredients from the safety data sheet)
How to use: We haven't been able to check a dose for this product yet. Follow the label exactly.
Careful: Human safety (SDS): causes skin irritation and serious eye irritation, suspected of causing genetic defects (phenol); wear protective gloves and eye or face protection; keep out of reach of children. Resorcinol is classed as very toxic to aquatic life.
Rules: Not for sale in the USA (sera).
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 pond cyprinopur. Not endorsements. Always follow the label.
5 facts checked with sources