First let me know what you plan to do...drill or HOB
overflow. If it's going to be a HOB
, you will need to size the pump to match the overflow after head loss. So, if it's a 1200 gph
overflow, i would get a 1500gph pump give or take.
If you decide to drill, and pump will work up to what the overflow you choose is rated for.
1 pump is all you need for this.
lighting brand? What do you want to spend? Ecotech Radion pro's are pretty good. Pricey though. Aqua Illumination SOL Blue are good. AI Hydra are good.
What corals do you intend to keep?
I like to use aragonite based sand as substrate.