Four MP40 or two MP60?

[HippieSmell]

I've got a 78"x36"x27" tall tank and was wondering which would be better. It'll be a mixed reef. I used the calculator on the ecotech website and it looks like either option will work, but I'm hoping someone has real world experience.

The tank is also 3/4" acrylic

Thanks!

[papasreef]

I have a 220gal. 72x24x30 tall. I used to use 2 mp40's and switched to 2 mp60qd and a mp40 on the back.

[jduck]

I would go with the mp40, you can position them better so it's not just one point of flow.

[HippieSmell]

Anyone else?