water flow

[Rick Reefer]

Hi I have a 120 gallon aquarium and was wondering what you are doing for return pumps and size and placement of power heads I have a rock pile 3/4 up the back wall

 

[johnyboy]

For my 75 gallon I'm using a dc6000 return pump and starting with one rw8 powerhead and when I have more money I'm going to get two. So maybe you can gage ur tank from this info

 

[onetire]

I have a 6 foot 135 gal with a 1300 gph pump and 2 mp40s one on each side . The return pump is a little to big for my in sump skimmer and the mp40s are awesome but it could also use some more flow mid tank ( I also have rock 3/4 up back wall)