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Post by Cyberguppy on Jan 29, 2006 20:31:56 GMT 10
Aeration is not necessary to a tank but may help with how many fish can be kept in the tank and also improve biological filtration. The bubbles from an aerator only add a small amount of actual oxygen to the water, the actual adding of oxygen comes from when they break and ripple the surface, increasing its area and also by circulating the water and bringing 'stale' water to the surface.
reasons to use an airstone:
hot weather (reduces oxygen in water) medication/salt treatment overstocked tank to improve biological filtration (providing bacteria with more oxygen)
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