Often black algae is hard to treat with standard chlorination or Algicide so a different type of product is required to treat the growth.
It is best when applied directly to the algae even when underwater by directly pouring into a sponge or like object and placing on the algal growth.
Black Spot Remover |
|
|---|---|
| 5L Bottle | NCBSR5 |
| 1l Bottle | NCBSR1 |
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