sump help

[Danno]

ok so ive got a 6x2x2 and am gonna use my old 50x20x20 as a sump, now i have been told by the guy at my lfs that a 45mm hole will be enough to give me a decent enough flow to the sump, i can't remember how much he said but is he right or do i need more/less...?



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[GrantA94]

I have a 40mm drain and 25mm return on my 135g. That easily handles 2500lph, so at 45mm I would say you're right on.

 

[PYG85]

I got 2x 25 mm return on my 220g and it can handle 6000lph or 1600gph

 

[leafs and cats only]

big ol sump there i dont know how to run mine so i need help too lol

 

[leafs and cats only]

lol

 

[DIDYSIS]

First question what pump do you plan on running?