Would this work?

[M.B.A.]

with your l.e.d set up only flood once a day.right when the lights come on "depending on the size of your r.w" it will hold a lot of water.u would need to flood more oftern if u were using a hps system or another medium that doesnt retain water.if u need more add another 15 min cycle.

I see, sounds better. I would probably be using 3-5" Cubes

I'm thinking of getting a 2'x4'x6" Tray for the top and a 24"x24"x24" for the res, so the end result should be roughly a 2'd x 4'w x 30"h, any specific pump anyone would recommend?