[Marlin65]

I was going to put in a deep sand bed in my refugium, but on another web site I read a link from someone that seemed to have a lot of experience with DSB's and he said the water flow across the sand bed has to be the same as the tank flow you would have for sps.
In your Refugium your flow would be a lot less.

So just wondering what you all think about that I have never run a DSB.
I could put it in the main tank but am worried about the dart and 4 way blowing the sand all over the place. Or is that just a mather of adjusting the nozzles for that?