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Old 03-09-2006, 04:20 AM   #3 (permalink)
Bert H
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A power head is essentially a pump installed inside the tank, usually attached to the glass via suction cup. Basically it sucks in the water from one end and shoots it out the other thereby creating more current and circulation.

As Trena said, with that much light and that size tank, you WILL need pressurized CO2.
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