First, here is a link to my build thread on RC.
The tank measures 7' long by 3' tall by 2.5' deep. I started this project way back in '05. The system has been set up in some form or fashion since then so it's going on 6 years in my hands. I won't repeat all that I've done as it's all listed in my build thread. But I will highlight some of my issues and things I've done.
First off, I like to keep this simple. It just makes life easier. So I don't run all of the fancy gizmos that everyone else seems to like.
I started with some big jacuzzi pumps for my closed loops as they came with the system. I replaced them with Sequence pumps as they were quiter and drew less electricity. I don't like the look of powerheads and such in my tank. However, with that said, in an effort to make my tank more electrical friendly, I am in the process of replacing my two sequence Closed Loop pumps with 10 Korillia 1400 pumps. This will do two things. One it will give me more flow in the tank and more spots of flow source. And the biggest is it will lower my electrical consumption from 600W to 60W.
Another issue I had with the system was the use of GFCI outlets. I have three dedicated 20 amp circuits for my system. I had installed GFCI outlets in the area of the tank for my electrical equipment. I had a major issue when my GFCI for my pumps had tripped and i woke up to dead silence. I lost a lot of my prize fish during that incident. I have now removed the GFCI outlets and instead installed GFCI breakers in my electrical pannel. They do cost more, but it would have probably saved me the loss of ten beautiful fish costing several thousand dollars. The issue with the GFCI outlets was salt corrision which shorted out the circuit and caused the failure. This would not have happened with the GFCI breakers.
One of the other things I have done is to replace my MH lights with solar light tubes. I have recently completed this work and am now waiting to see the results other than in my lower electrical bill. My corals have browned out which I have found out will happen. So now I'm waiting for them to color back up. I will probably wind up suplimenting them with some PAR 38 LED lights. But they won't use near as much electricity as my 800W of MH lights did.
If you have any questions about running a big tank, ask away.