last question on design

Ok, so here is my fuge. As you can see in the picture the input is the upper right and then it flows thru a pvc pipe and out holes. My question is should I put the pipe straight down and have it flow out holes as well? this way I put the "new" water in on the bottom as well? Thanks jacob

 

Personally I think it would be a good idea to. I have had some experience with refugiums at work and I know we like circulating or water throughout the water colum in the refugium to get the macro of your choice to tumble and get equal light and all of that jazz. Its never good to not have enough flow through anything (display tank, filters of all sort, sumps,) and the rugium is no exception IMO. All and all it wouldnt hurt.