08-22-2011, 10:44 PM
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Filtration - Too much? Too little?
I have a 55G aquarium with about 33"-worth of fish, of which 6 fish are larger and make a lot of waste. My current bio-wheel filters run 350+170= 520gph. I also have 2 powerheads on an under gravel filter. Is this too much? Is there such a thing as too much filtration? It's close to 10X turnover per hour.
In this tank, there's a lot of water movement and bubbles from the powerheads, which I'd like to cut down on. Will I get enough Oxygen in the water from just the air contact in the bio-wheels if I remove the air entrainment hoses?