Not much of a build, all parts are off the shelf but more of an assembly I guess. This is my 6th tank I have put together and hopefully it will last us a long time. As the title says this is a Waterbox Peninsula with a 80 gallon display. Currently it sits running with live sand and about half the rock is live. I will say that it is with out a doubt the nicest, well thought out system we have owned. We have had Planet Aquariums, Red Sea, and custom units by DAS. We went with a EcoTech Vectra S2 return and two EcoTech MP40 power heads. Keeping the EcoTech theme we will be installing two XR 15 Blues on a RMS rail. The sump will be receiving a Ultra Reef akula-uks-180-protein-skimmer. I will update as the tank progresses. Thanks for looking