Thread: dolphin c-700
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Old 22-07-2004, 04:59 AM   #5
rayong@mac.com
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Don't use bio balls. Aside from having small surface area for the BB it is not suited for the canister. Bio balls work best in a wet/dry setup. You would be looking at coarse ceramic rings or those made of sintered glass or biohome for bio filtration.
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