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Old 07-30-2006, 07:20 AM   #5
judya
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Join Date: Jan 2005
Location: Columbus, Ohio
Age: 55
Posts: 223
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I wouldn't worry about the bubbles, but I would take an airline and get a sponge filter. I use them on all my tanks, whether I have any other filter or not. They are an excellent way to do biological filtration.
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