Time for a little update. The tank is a 4' 120 gallon Planet Aquariums tank, and the stand is about 7.5' long. The extra space gives me room for equipment & room to work. I hated being cramped under my other tanks.
On the left is my ATO reservoir. It holds about 20 gallons & last about 10 days (ergo, I am evaporating a little under 2 gallons a day). It's gravity fed - there is a float valve on the right side, in the return portion of the sump. The sump is 3'x16"x16", with black baffles and bottom. Both the ATO res & sump were made by Advanced Acrylics (this is before BAO was doing their thing I guess - probably built ~2 years ago). On the left you can see my recirculating Avast CS1 skimmer w/ a swabbie and a Davy Jones locker - mmm, look at all that fish poop. You can also see a Reef Octopus BR-110 biopellet reactor. The manifold feeds the BP reactor, which then feeds the input for the recirculating skimmer. I just hooked up the BP reactor tonight - we'll see how that goes. I used to run it on my old tank. The return pump is a Waveline DC-6000 and I have a single 300W heater under there. Everything is controlled by an Apex. Ignore the mess of black 1/4" tubing on the right side of the sump - that's where my calcium reactor will go, when I get it fixed. The pump made an awful racket & I'm changing it out. There is also a single BRS reactor running a mixture of 1/3 GFO and 2/3 carbon. You can't see in the electronics compartment, but there's an Apex, drivers for the lights and pumps, and a 10lb CO2 bottle in there. The electronics section is fully separated from the sump area.
Sorry for the crappy cell phone pic. Clearly the tank is bare bottom, and the rocks are all Marco Rocks and the arch is held together with his E-Marco 400 cement. I got three little rocks from Dennis' sump to seed corraline & things of that nature. There are two Vortech MP40's, and the tank is lit by dual Radion Pro's (gen 2 version). Yeah, I was doing custom LEDs and they work, but I didn't have enough control channels to mix colors nearly as well as these Radions - live & learn. There are 10 fish in there - a Purple Tang, a Yellow Tang, a Flame Angel (this is the risky fish of the bunch but my daughter... you get the picture), a pair of snowflake clowns (~3 years old, these guys have been through several tanks & lasongo's sump), a Bellus Angel, and four blue-green Chromis. There are also some SPS frags from various places, including reeftopia's tank, rlpardue's tank, and lasongo's tank.
I think I'm doing typing for now.