Plumbing

Any thoughts you can share that would be helpful,
I finally have time to complete my fish room, i would like some friendly comments and suggestions on plumbing and lighting, i have in the past completed 2 fish tank setups and leared alot but still looking for more ideas and innovation.

At the present i have a 180g Oceanic "sleeping in the pics," and a 220g Oceanic ready to be born!

I am looking at a Fowlr ...