[Gina]

Trying to direct the flow in such a way that it doesn't kick up the sand, is a pita to me!
We have a closed loop and only 6 outlets. We are running a Dolphin Ampmaster (can't remember off the top of my head which one) and a super sea squirt rated at 2200gph.
I think I have alot of good flow towards the front of the tank but, I am finding out not directed to the back of the tank. I think I need to find some different nozzles for directing the flow than what we have. You can only turn them so far. Or, I need to put in a ph in the back of the rock work.

From what I can remember we are running about 20x the turn over rate.

As for the sand bottom, as I was positioning the nozzles, I would watch the sand and see how badly it would get blown around and then adjust alittle more. Even then, the sand still ends up in little mounds.
I would like to know how other people keep their sand in one place also.