where to drill?

[outtafocus]

FYI, I am going straight down, through the 1/2" glass. I am using 1" pvc which should give me adaquate flow in a 25gal cube.

25gal cube + approx 15gal cube sump + 11gal external display refugium
= approx 51gal total. Not bad considering my plan was to have a small system for my apartment.

I will be placing the refugium on a seperate stand next to and about 4" higher than my main display tank. Water will enter the fuge via a T off of my return line with a ball valve to adjust flow. Water will then fall back into my main display through a 1" bulkhead drilled into the side of the fuge glass and plumbed over the edge.
This way all pods that grow in my fuge wont be chopped up in a pump before they become food for a possible(???) distant future mandarin.
What do you think?