looks good to me! really all you have to do to understand things like that is look up the "nitrogen cycle" you will understand water quality alot better after finding out how that works!
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120 Gallon Reef With 2 overflows and 35 Gallon Sump. Mag 18 on the Return. Lit by Aqua Light Pro Deluxe. Super Reef Octopus 2000 Skimmer. 81 # LR
28 Gallon Top Down Display Mixed Reef. Radios Pro With TIR Lens Kit
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