- Immediately removes string algae
- Works on contact
- Money-back guarantee
- EPA-registered algaecide
CrystalClear Algae Off utilizes the latest in oxygen technology to remove string algae quickly and efficiently. CrystalClear Algae Off is an EPA-registered, granular algaecide that works in seconds, adding oxygen to the pond, removing odor and it's the only water-treatment product on the market with a money-back guarantee.
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