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Algaefix Marine is EPA-registered as reef-safe. Algaefix Marine Algaecide keeps marine aquariums clean and clear.
1 Add 1 ml (1/5 tsp) for each 10 gallons or 5 ml (1 tsp) for each 50 gallons or 50 ml (10 tsp) for each 500 gallons of aquarium water. Repeat dose every 3 days until algae is controlled. Siphon or scrape any dead algae from aquarium.
Once algal growth is under control, add one dose per week. Weekly doses of AlgaeFix Marine will control algal growth and reduce aquarium maintenance.
Poly [oxyethylene (dimethyliminio) ethylene (dimethyliminio) ethylene dichloride]: 4.5%.