diy bio filter

fishman101

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Jan 8, 2004
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warren-oh
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hello everyone as you know im new to the forum...i was wondering if anyone can tell me if this would work for a ugf i already have 2 hob filters on my 30 gal. but felt i needed more bio filter so i came up with a ideal for a ugf i used a 1 liter pop bottle drilled a hole in the bottom for the airline tube filled it half way with pea gravel and the rest of the way with bio-balls and drilled a hole in the top of the cap for a outlet.and drilled 2 holes in the side for the water to get in.the bottle is submerged in the corner...would this work as a cheap alturnative to a ugf...
 
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