Oceanutz
New member
I have a life reef sump with an external refugium , sump 20 g and ref. 13 g. My question is: should my drain line be the same size as my return. I plan on spitting my drain so 2/3s goes to sump and 1/3 goes to ref. From the ref back to sump through reactors . Is that last part a bad idea or should it join into the return line?.
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