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03/27/2014, 07:57 PM | #76 |
ReefKeeping Mag staff
Join Date: Apr 2006
Location: West Seneca NY
Posts: 27,691
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FWIW, I keep granulated activated carbon(gac) and granualted ferric oxide ( gfo )separately . The gfo can exhaust in days if phosphate is high. I routinely change the gac once per month or sooner.
Good luck .
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Tom Current Tank Info: Tank of the Month , November 2011 : 600gal integrated system: 3 display tanks (120 g, 90g, 89g),several frag/grow out tanks, macroalgae refugia, cryptic zones. 40+ fish, seahorses, sps,lps,leathers, zoanthidae and non photosynthetic corals. |
Tags |
external filter, filter, media, media basket, new additions |
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