MP40 placement / power recommendations

[Jimbo662]

So, I've got two MP40's that I had on my 175g / 6' tank and am reusing them on my 75g / 4' tank. I've currently got them about 8-10" below the waterline and about 4" from the front. Now that I'm starting to add corals where would be the best placement and what do you think would be the max power for a 4' tank?

 

[Reefing Madness]

 

[jedimasterben]

I have an 80g, 48x24x16 tank. I've got two MP40 on it and had an MP10 (need to change its bearings). I ran them on Reef Crest and Nutrient Transport modes, 80-100%, and they're centered on the side panels.

Put corals wherever they're happy, only you will know that.