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Multibuy Available - 10 for $60 (just $6 each!)
Keep your decorative water features and small ponds crystal clear and beautiful with the Pond One Algae Block! This convenient, slow-release block is designed to provide effective, long-lasting preventative action against the growth of green water algae, string algae, and sludge.
The small, highly concentrated 20g block is easy to use: simply drop it into your water feature, and it will slowly dissolve to treat the water, inhibiting algae formation and maintaining clarity. It’s an ideal, hassle-free solution for ensuring your fountains, bird baths, or small ponds remain attractive and clean!
Slow-Release Formula: Designed for long-lasting, gradual dissolution, providing continuous preventative algae treatment over an extended period.
Effective Algae Prevention: Works to inhibit the growth of various types of common algae, including green water and string algae.
Ideal for Water Features: Perfectly suited for treating smaller, static bodies of water such as fountains, bird baths, and decorative pond features where continuous filtration may not be present.
High Concentration: The small 20g block is highly potent, capable of treating up to 800 litres of water.
Easy to Use: Simply place the block directly into the water for hassle-free application—no complicated measuring or mixing required.
Format: Slow-Release Block
Weight: 20g
Treatment Capacity: Treats up to 800 litres (approx. 211 US gallons)
The Pond One Algae Block is ideal for owners of small ornamental ponds, fountains, statues, and water features up to 800 litres in volume. It's the perfect preventative treatment for maintaining clear water and reducing the need for manual cleaning.


Need help with placing an order, delivery, or something else? Start with our Help Page — or message us anytime for support.
