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Review on Revitalize Your Aquarium with Seachem Renew 1 Liter by Mary Beauchene

Revainrating 5 out of 5

A much better alternative to activated charcoal when Purigen is not available.

This is much better for planted aquariums and never seeps into the water. Activated carbon can sometimes leach phosphate back into the water, which can lead to algae outbreaks. Because it never leaches anything back into your water, you can always use it as a substrate or additional biomedium when it stops absorbing.

Pros
  • Great design
Cons
  • Crumpled packaging