Best Tunze placement for 6105's in a 120

[Crackem]

Hi Roger

I have 2 6105's from my 72 bowfront that I've been using with the 12v jumper and I bought 2 more 6105's for my new 120 gallon 48x24x24. My plan is to use 2 with the 18v or 24v jumper (depending on flow) and 2 with the 12v jumper.
The 120 has a corner flow on the left.

First question is what's best placement for all 4 powerheads?

Second question is I will be using my apex and would like to know what percentage to run each powerhead at?

Thank You

 

[rvitko]

I think 2 6105's is enough for a 120. I would use the 18V jumper with the wide flow housing and pulse between 30 and 100% with the other pump running at 30% and 5-6 hours later they switch off.