2 x MP40's for an 85gal

I actually just went on ecotechmarine.com and checked out their vortech flow calculator and according to them I would only need 1 mp40 in my 75, and here I thought I would need two...I know what I'm getting for my birthday

 

I have two MP40s on my 75 and have them turned well down, no more than 4 LEDs on, in sync mode plus my return which is about 250 gph. My SPS are doing great at this level.

You could get away with 2 MP10s with your return flow.

 

Two smaller is better than one large because when they are working together synced wirelessly, they make some awesome currents.

I'd say do MP40 + MP10. Or at least two MP10s.

While two MP10s will def do it, the velocity of water is rather large. I think MP40 at lower setting will move more water at lower velocity, which is better.

 

Well I'm going to pull the trigger on the 2 x MP40's - he is throwing in the battery backup as well so i think its a pretty good deal

 

amazing deal!

 

That is an amazing deal for sure!

 

Wow nice find, your going to love that flow.

 

sounds like overkill. +1 with mp10 tip but make sure your glass is not too thick. as mentioned before on their site they have an online calculator that will tell you what you need

mea culpa didnt read till the end. thats a sweet bday gift....id like one.....

 

Dude you are doing great. Not overkill!!

Recommended flow turnover is as follows:
Soft: 10x -25x flow turnover
LPS: 50x flow turnover
SPS: 70x - 100x flow turnover