220g- how many echo tech M40s?

[LesPoissons]

Hi,
I have a 6 ft 220g tank. I thought an echo tech M40 would be crazy circulation for my tank. Not at all. Anyone with big tanks- how many m40s do you have and how do you position them? Thanks!

 

[saltybees]

Mp60 on each end and 3 40s on the back..mon dieu!

 

[DaneGer21]

I have a 60x36x24, and I use 4-mp40s.

All 4 @90% reef crest

 

[redfishbluefish]

You're not going to like my answer. I have a five foot 90 gallon tank and have four MP40's and one MP10. I've redone my tank, but the MP's are in the same position as this old picture.

 

[Camaro Show Corals]

You need lots of pumps, the more random flow the better. I’d suggest 4 mp40s or 4 gyre 350s which is what I’m using on my 210 build and 2 sea swirls on returns

 

[ca1ore]

MP40 just doesn't cut it on big tanks. Got to go MP60 or MP80.

 

[LesPoissons]

Man. This is why i should always check here first.
Thanks guys!

 

[Billldg]

Their really isn't any easy answer to this. On a tank with no aquascape it would be easy, no obstructions. I am building a 225 gal 72x30x24 tank and I plan on using 2 MP40's and 2 Gyre 350s to start. I know that combination will turn the tank more than enough, but I won't know for sure if I like the circulation until I have my tank wet and I get to see how the aquascape effects the circulation.