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post #12 of (permalink) Old 07-16-2013, 01:45 AM
Algae Grower
Join Date: Jun 2012
Location: Brooklyn, NY
Posts: 11
While I only use a aquaclear 50 on my tank I do add air to sustain that which the plants use at night. The ph swings are high at night. Once the tank is established the fish and plants create a natural symbiotic relationship. High movement forces gas exchange at the tanks surface. In a low tech tank less exchange is good.
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