2 MP20s or 1 MP40???

[steveoutlaw]

I have a 90g (48" x 18" x 24") mixed reef and I'm looking for the best flow option. Should I go with 2 x MP20 (just random flow) or 1 x MP40 (more power and could generate better wave action)?

What do you think?

 

[Mike31154]

Have you considered 2xMP40W? I'm running a 40 on my 75 gallon and when I upgrade to the 90 I have sitting empty, I'm seriously considering adding another. More costly yes, but with two pumps that can communicate with each other your options are worthwhile.

 

[steveoutlaw]

I can't afford that right now. I'm just trying to get by with what I can afford which would be 2 MP20s that I already have or selling one of them and upgrading to an MP40. I'm thinking about just keeping the 2 MP20s so I can upgrade in a year or so when I can afford it.