rikka “Snail Stop” is designed to control unwanted snails and invertebrates that got into the aquarium by accident or have multiplied out of control.A special formula binds copper compounds into polymer complexes that act mainly on invertebrates.While using the product, remove dead snails promptly (at least daily)! This prevents the water from getting polluted.After treatment, siphon the substrate thoroughly.The product has little effect on snail eggs, so the treatment can be repeated after a few weeks.It is advisable to move the fish to a separate aquarium during treatment!For ornamental snails and shrimp this is essential, as the product affects all invertebrates equally!DIRECTIONS:Provide intensive aeration in the aquarium during treatment!Clean the filter thoroughly before use. Light and UV do not affect the active ingredient.Dosage: 2.5 ml (75 drops) per 50 l of water, once.With a large number of snails or in hard water: 2.5 ml per 50 l once a day for 3 days.One day after treatment, change 1/2 of the aquarium water, filter the water through rikka “Carbon Active” and add rikka “Aqua Start” live bacteria.Shelf life: 24 months.Volume: 100 ml.Composition: polyorganic copper compounds.Manufactured in accordance with TU U 20.5-3348315741-001:2015.