Gph for 125 gallon tank

[stickman87]

I'm currently setting up a 125 gallon reef tank with 125 gallon sump and was wondering what I should be shooting for for return pump. I don't need it for flow I have plenty of gyres to put in for flow. Any input appreciated

 

[JGT]

I'm currently setting up a 125 gallon reef tank with 125 gallon sump and was wondering what I should be shooting for for return pump. I don't need it for flow I have plenty of gyres to put in for flow. Any input appreciated

4 times the volume of your tank per hour is a good number. Don’t need the 10x mentioned by some.

 

[Auquanut]

Wow! That's a big sump. So many things you could do with a sump that size. I agree with @JGT. 4 or 5 turnover per hour is usually good if you have good flow in the tank. You could raise it a bit to increase flow through the sump if you want to. Sure would like to see that sump. I'm kinda jealous.

 

[stickman87]

Still in progress only put it half way under the stand so I can get to the roller mat and will cover the exposed section of the sump