return pump help

[shinobi9119]

i have a 75 gallon tank, (all glass aquarium with mega flow) i will be getting 2 hydor koralia power heads with 600 gph each. I am looking at a mag drive 9.5 for a return pump. WOuld all this be ok, ro would I end up flooding one of the tanks? thanks

 

[scsinet]

Megaflows are rated for 600gph. Given that a mag9.5 is 950, leaving you with at least 700gph after head loss, you are going to need to dial it back some with a ball valve.
Personally I'd use a Mag7 for this, as there is no need to dump all the extra heat into the water of a larger pump if a smaller one will do...
Your Koralias will do a great job.. giving you at least 1500gph of total flow in your tank when you figure everything together. That's 20x flow, so you're golden.

 

[shinobi9119]

thank you!!!