[Wayne's World]

I have finally got my 90 gal stand and hood done and the tank is being water tested now. I am planning on a relatively deep sand bed and I'm in the process of planning the flow dynamics. What is everyone doing for flow behind the rock work?? or is there no need for additional flow in that area. Due to such small sand particles is there a big problem with spray bars? I have a Wave Maker pro that will also be in the system so I was thinking of driving a spray bar with a timed power head located in the overflow. Any input would be appreciated greatly.
P.S. still looking for Southdown, anyone????????

[wastedincome420]

I think that a spray bar behind the rock work would be a great idea. Althought dont want it too low (you dont want to stir up sand).

[tendar]

Spray bars work fine just make sure to drill the holes big enough so they dont clog up to fast and place it some where you can get to it to clean it out once in a while.

[Wayne's World]

Thanks for the replies guys. I'm going to try to incorporate some kind of behind the rock flow system. I'll let you know how I make out.

[Bughead]

I built a spray bar across the back wall behind the rocks in my 55 gal. My mistake was putting in too many holes. It cut down on the water pressure of the spray. Nothing much I can do at this point without major messing. It's not a big problem anyway. I put in a couple of extra PHs for more movement in the front.