Power Head

[kp33]

If I have a 90 gallon tank what size rated power head should I have, meaning how many gallons per hour should it turn over . Thanks

 

[bushdoc]

40-120-x DT volume.
My tanks volume is 140 gal, so in this example it is about 90x my volume.
I run it higher sometimes. At the time it is mostly LPS. If you have Acros, flow should be even higher.

 

[vtecintegra]

I don't go by gph. I think distribution is more important. On a 90~120g tank I would use four pumps. My favorite set up is two gyres up top where the wires are less noticeable, and two MPs down low. All four on the back.

 

[Mr. Mojo Rising]

well if you want 10x turnover for example, then you are looking for 900 gph powerhead. For me, 10x is very low, I prefer about 30x at least.

And remember, a powerhead rated for 900 gph will almost never go 900 gph, they get dirty and clogged up and every day lose a bit more power. So always go slightly stronger.