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ice440
04/02/2011, 09:03 PM
so i recently just bought a 135 gallon tank was wondering how big of a return pump i would need its only traveling like 2 ft high since the sump is attached to the back of the tank

keifer_unit
04/02/2011, 09:40 PM
Well it all depends on the size of the sump you have. I would say either a Mag-drive 12 or 18. You want your flow to be 10-20 times the size of the tank, so that would put you at 1350-2700gph.

MHG
04/02/2011, 09:48 PM
Most of the guys on the forum have been saying 3-5 times at most and the rest is done with circulation pumps...

ice440
04/02/2011, 10:05 PM
think an 1100 gph pump would be adequate?? and get some pretty strong powerheads?

ice440
04/02/2011, 10:06 PM
and the sump is built onto the tank its really long but shallow its not very big at all

ice440
04/02/2011, 10:09 PM
my brother has an mag 11 he said i could have wasnt sure if it would push enough tho