PondOne Algae Block

Size: 80g (4x 20g)

Dose: One square (20g) per 200 litres, or one complete block (80g) per 800 litres of water.

Pond Algae Blocks are best used as a preventative, or when algae first appears, or after cleaning an algae infested pond. Blocks will dissolve over 7-14 days. Repeat only after algae reappears.