so a 620 will blow fine then where i haver a huge frogspawn and a hammer corla along with a bubble coral in there with star polyops mostly lps in the tank as you can see. I have a 3md with one return plumbed from the basement and pushing out around 4-500 gph on the left and i have a 1200 on the other i would like to have a more of a gentle roll in the tank to counter balance the 3md.
mike
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180 starfire front, LPS, millipora
Doesn't matter how much you have been reading until you take the plunge.
You don't know as much as you think.
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