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Old 02-21-2010, 03:43 PM   #1
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Question GPH for DIY canister filter

Building my own canister filter out of a 5 gallon bucket. got my plans all together and figured out how to fix a few problems i have seen in other DIY canister filters.
the thing I don't really know is how many GPH is enough. I want to replace all my HOB filters and this be the only one. SO with a 55 gallon FW tank how many GPH is necessary? .

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Old 02-23-2010, 12:58 AM   #2
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Depends on what you are keeping in your tank. Goldfish & big cichlids, & other "dirty" fish, the recommendation is 8-10x turn over per hr for the filter - ie 400-500 gph.

You can prob go down to 300 gph or so for lighter bioload tanks.
80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
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canister, canister filter, diy, diy canister filter, filter, gph

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