Great for improving your biological bacterial count in your aquariums. Common used in Canister Filters, Hang on Back filters and sumps.  The bio rings weight 1lb 2 oz or 500 grams.

Bio Rings

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Great for improving your biological bacterial count in your aquariums. Common used in Canister Filters, Hang on Back filters and sumps.  The bio rings weight 1lb 2 oz or 500 grams.

Customer Reviews

Based on 100 reviews
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S.P.
Bio ringsi
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A.C.
A Sump Must
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P.C.
Bio Rings
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D.L.
Bio Rings
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K.
Bio rings
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S.j.s.
Been tested
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J.m.
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K.M.
Bio rings
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M.B.
This is a large bag!
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S.S.
Top layer of HOB filter build out