Number of powerheads

[txrunning1]

I have a 75 gal tank with lr. I am hopefully adding a 4"dsb this week. I am slowing wanting to add corals and more inverts. My question is how many power heads do I need to circ my H2O? I have three right now that push a total of 2200 liters/hour. Should I add another? Or should I take some out?

 

[up north hermit]

I say the more the better. Someone once told me when you think you have enough (powerheads),add 1 more.
I have a 40 gal/br with 28 gal of actual water, 5 1/2" DSB. I push 1500 gph in this tank with excellent results. (And that doesn't include my skimmer.)
Of course, the species of animals you are keeping should be taken into consideration. If you have low water movement loving corals (such as mushrooms, etc.) then I would plan, and adjust, accordingly.
HTH
Hermit