CAUTION: Do not use with freshwater crustaceans including shrimp, crabs, and lobsters.
- Add 1 ml. for each 10 gallons or 5 ml. for each 50 gallons of aquarium water.
- Repeat dose every three days until algae is controlled.
- Siphon or scrape any dead algae from aquarium.
- Once algae growth is under control, add one dose per week.
- Weekly doses will control algae growth and reduce aquarium maintenance.