Where to put the Active carbon .. submerged or exposed to air (top filter)?

Discussion in 'Filters, Pumps, etc..' started by minajaguar, May 12, 2012.

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  1. minajaguar

    minajaguar Spaghetti Worm

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    Where to put the Active carbon .. submerged or exposed to air in my (top filter) ? ...
     
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  3. psiclone

    psiclone Purple Spiny Lobster

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  4. 2in10

    2in10 Super Moderator

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    Submerged, in flow, preferably in a reactor or canister filter.