Which pumps to get

[TegaCayReefer]

My tank dimensions are 21" deep x 72" long by 19" wide, 120 gallon. I have played with the VorTech flow calculator and looks like I have a couple of options. I can get pretty close to the sweet spot with 1 mp10 and 1 mp40 or the alternative that hits the sweet spot exactly is 4 MP10's. I would guess from a placement perspective the mp10 mp40 combination would go on both ends and the 4 mp10's would be one on each side and 2 on the back. Any thoughts on if the extra $400 would really buy me anything for the 4 mp10's?
Thanks

 

[Tornader]

I have 2 MP40s in my buck twenty. Plenty of flow and no dead spots.

 

[Alex Y EcoTech]

tega,

Since your aquarium is most likely to thick to use an MP10, I would recommend using 2 MP40wES.

 

[TegaCayReefer]

The best I can tell the glass is 3/8 thick, the top of the range for the MP10's. Am I likely to have issues with the pump with that thickness. If I use the Flow calculator, the 2 MP40's show more in the SPS zone vs the LPS and I have a mixed tank. Any issues with that? I am assuming I just slow them down, correct?

 

[Alex Y EcoTech]

Tega,

Any MP10 will work fine on aquariums that are 3/8 of inch thick. That being said, which ever pumps you choose I'm sure you will be happy with your decision.