Charcoal acts as a filter to absorb impurities in water and improve air quality. It is excellent as a layer in the bottom of containers and in terrariums where water may pool. Charcoal also can help absorb impurities in fertilizer.
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Charcoal acts as a filter to absorb impurities in water and improve air quality. It is excellent as a layer in the bottom of containers and in terrariums where water may pool. Charcoal also can help absorb impurities in fertilizer.