Ok, as for the overflow box...I am going to to with the lifereef...I just need to make sure on something, for my tank I am wanting the one that has Flow rate up to 600 gph right??
Is this what I'm looking for as far as return pump?
http://www.marinedepot.com/ps_ViewItem.aspx?idproduct=DN1127
before i can answer this, whats your drain bulkhead size?
yes. you might need to T cause it has 800 GPH at 4'
With the lifereef 600 GPH I would go with a Mag 7 or Eheim 1260. A 9.5 might be too much flow.