Sump pump???

[Gibb72]

Looking to built a sump for my 90 gallon and was wondering If anyone could tell me the right size mag drive pump, a 7 or a 9.5 to use. Thanks

 

[Daniel Fishy]

I run both on two 75s on the one with a 9.5 I have to dial it down. So I would go with the 9.5 on a 90 but both would work. What size sump?

 

[Gibb72]

I'm going to go with the 75 instead of a 90 and I think for my sump I'm going to do a 30 or 35. So if I do a 75 I could go with 7 instead of the 9.5 so I don't have to worry about Adjusting it?