Aqua One Algae Blocks provides a slow release to assist in the control of algae within your aquarium.

• To control algae, add one cube per 20L or one complete block per 120L of water.
• This block is best used as a preventative or when algae first appears or after cleaning an algae infested aquarium
• Blocks will dissolve over 7-14 days depending on water conditions and circulation

20g

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