For water suitable for fish and plants: water conditioner to fight floating algae (green water) in garden ponds.Easy to use: calculate the needs, mix with pond water in a watering can, spread evenly over the entire pond. Repeat after 24 hours.Effective and fast: attacks and destroys algae cells within a few days.When used correctly, the product is harmless to fish.Included in delivery: AlgoPond Green water conditioner. Dosage: 25 ml for about 1000 liters of pond water.