120 gallon powerhead question.

[alpineroush]

I currently have 2 mp40 on each end of tank. I am running a bare bottom tank. Should I put 2 mp10 on back wall down low to help clean bottom or 2 more mp40?

 

[Member No. 1]

I have a 120 BB with (4) MP40's. (2) on one end mid height, (2) on the back toward the top.
The end pumps run @ 100% 8am-8pm, back 40% in NTM, then 8pm-8am end 80% back 30% in Reef Crest.
The bottom stays clean.
I would go with 2 more 40's. You can turn them way down if need be for less flow, but if you need more the 10's might not be enough.

 

[cody6766]

My 120 was not barebottom, but I ran 3 MP40s. One on each end, on on the back. I probably ran them at around 75%, but it's been a while and I don't really remember.