6025, 6045, 6055 + 7091

[Ty BOy]

My tank is only 40+ L of water. I would like to try the captioned nanostream. I wonder these pumps are too powerful in my tank , and would add a 7091 single controller to lower down the speed.

Which one can be used in single controller ? Or all of them is possible?

TKs for your help in advance.

 

[rvitko]

Only the 6055 is controllable. It can produce as little as 200gph so it is definitely not too much.