DIY Undergravel Filter (UGF)
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A Defense of Undergravel Filters
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No CO2, No Fertz, No Filter, No Water Change
23:54
Using an undergravel filter to set-up a plenum
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DIY undergravel/active soil filter setup.
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DIY Under Gravel Filter. Cheap Easy and Quick
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Much Clearer and Beautiful Glass - FULL ULTRA CLEAR SUPER AQUARIUM WITH SUMP #aquarium #fishtank
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Did This DIY Aquarium Filter Actually Work?
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