Hey SeaSerpant, weather it's skimmer->fuge->return or skimmer->return->fuge setup, I would reccoment making the return area as large as possible. I never really knew what people meant when they mentioned this to me when I was building mine. The reason is the return area is the first area to notice the effects of tank evaporation. So a larger return area allows you more time in between top ups. Before I built my ATO I was only able to be away from my tank for 2 days before my return area was out of water. Just something to think about.
HTH
Kevin
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