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Seachem Excel

2Hr Aquarist Commentary: Seachem Excel is marketed as a workaround to injected CO2 but it is widely used by experienced aquarists for another purpose- spot-treatment of algae. It works similarly to Hydrogen peroxide but some plants are more susceptible to it (liverworts, vallisneria species). The advantage of Excel is that it can be stored for long periods. Hydrogen peroxide degrades to water and oxygen over time. This can be used as a dip solution when diluted in a 1:25 ratio. Dip plants affected by algae in the mixture for 20 seconds.

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