sump size

NickP123

New member
I'm setting up a 120 megaflow tank. I'm pretty much set for equipment but I'm not sure how big I should go on the sump. I prefer to build my own rarely than over pay for a premade. Any suggestions on sumps size.
 
With a 120 gallon tank, one inch in height equal ~5 gallons of water. If your overflow box is 2 inches below the top edge, then potentially when the pump shuts off, the water will continue to run into the tank until 10 gallons has drained out. Your sump will be half full. That means, a bare minimum in this example would be a twenty gallon sump. The overflow may not allow that much to drain and you may get along with less. The point is, you need a sump that will hold at least twice the volume of water released to it in the event of a power failure. 2nd, the width and length of the sump must be one that can accommodate the equipment you plan to put in it.

Mike
 
im planning on using a 40 gallon breeder. pretty cheap unless you have an acrylic or glass hook-up. im going to pick one up used if possible, if not i have a buddy who an acrylics buisness. he said he'd help me build one. if i move into a house before i get the tank im plumbing it to the basement with a stock tank so i might not even have to worry. anyway, go as big as possible, every gallon you have helps make your tank more stable.
-nick
 
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