Supa Anti-Algae Pond Blocks
Hills Pet Shop
£2.89
Supa Anti-Algae Pond Block is a slow releasing Algae preventative.
When placed in the pond, the block slowly dissolves releasing di-methyl urea as it does so. This is totally safe for fish and stops the growth of water born algae.
Using this in spring will prevent a build-up of algae when the weather turns warmer in the summer.
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