I beleive a 1' drain will handle 700 gph- and that will be pushing it. I would go with 5-600 gpm for a return pump, after head loss.
The korillias are a great way to go. Get the controlable ones, just in case you upgrade to a wavemaker.
If you got the cheese- you might want to look into the vortechs or tunzes.
If you are on a budget, the modded maxi jets put out some flow!!
BE WARNED: The controllable Koralias MUST BE USED WITH THE WAVEMAKER. Or you have to snip off the connectors and run them at 12v. They are NOT AC compatable. 120v will explode them all over your tank.
I have my return pump split into two returns. One feeds the Tank, the other feeds the fuge. My drain is plumbed into the center section, as I found that the 600 (the standard on a 1" drain) was killing my Chaeto for some reason.
I can dial in the GPH on the Display tank and in the fuge.
Originally Posted by Sir Patrick
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