starting a hang on back refugium

[milkshake]

How or what is needed to start the siphon in the hang on back refugium? Is there an air pump needed? If so, how do you apply the air pump to start the siphoning?

 

[milkshake]

^

 

[bigbenji]

I think most of them have a powerhead pushing water into them. My cpr version does anyway.

 

[milkshake]

bump

 

[supertech3]

Mine has a minijet pump 79-153gph pumping into the fuge and then the water flows out the other side