Thank you for the comments about the aquascaping, I love it. Even more now there are some fish in there! My wife gets 100% of the aquascaping credit, I have zero patience for that and she is great at it!
I wanted the flow from the sea swirls to be at the top only for some nice surface current. They are 1" in size but I am only pushing around 1000 gph out of each one. I went with 1" incase I wanted to push more flow. I am considering putting a reducer thread into the end just to give the flow a little more velocity but will see once I play with it a bit more.
The closed loops are the primary flow creators currently, I will be adding a couple MP60s on one end once corals start getting stocked and growing out.
It may be unsightly, but I imagine you could thread in a PVC nipple and a 45 angled downward on the sea swirl, the end of mine are threaded and assume all are this way.