Flow:
The main returns are powered by 2 sequence 5800's which bring the water back up the aquarium and through 4 sea swirls which are located in the front. 5 Tunzes further push water through the system. Total water movement is about 22,000- 25,000 GPH. This really isn't much but the tank was design to have slower water movement areas. The entire center island is supposed to have low flow. I did this to give the fish a break point or rest area. Further more I could place lower flow loving specimens in this area. The tank was designed to have two high flow reef walls on each side with lagoon in the center. All the pumps where placed to have a periodic crashing point which would create a random water current through out the system. Absolutely no pumps were aimed into this low flow area but the water crashing is so effective their really isn't much less flow in this area. I have actually seen water vortexes created in a lot of different areas of the tank ( really cool affect).
I'm getting tired so my spelling is getting bad but i'll try to cover some more stuff for everyone. I will try to check back another day and give more info but this will be it for awhile.
PVC Racks.
One of my more thoroughly researched points. The entire reef structure is hollow behind the rock work. I did this so the fish could get away from the people whenever they wanted and to increase the effectiveness of the biological filter. This was also somewhat modeled after Tyrees sponge biotope. The actual racks are nothing more than pvc piping coverd in Great Stuff styrofoam in a can. After researching for countless hours on Reef Central I found out the syrofoam in a can breaks down due to U.V lights. To eliminate this problem I covered the styrofoam with Epoxy resin. While the resin was hardening I used aragonite to dab (with a paint brush) into the curing resin. This worked awesome! The end product looked like a base rock. After it became covered with coraline algae the pvc rack can't be identified from the live rock.
Live Rock: During the planning proccess I collected cheap live rock from peoples tanks that were selling or moving. I also traded coral frags for live rock and investigated making man made rock. I placed all the excess rock in a 150 gallon tank which was hooked up to my main displays on my original system. By the time the new large tank was ready I had most of the rock I would need. I did purchase about three hundred pounds from a friend who was shutting down his tanks while mine was being contructed. Total guesstimeted live rock would be about 1200 -1400 lbs. After the racks were in place I began setting the rock work up just to cover the racks. Since most of the design work went into the racks placing the rocks was a breeze. Further more I didn't have to hide much of the rack system since I knew it would become corraline encrusted and look like live rock. I noticed that many of the hitchhiker corals on the rock work were doing great in the tank on the first day. I continued for about a month aquascaping and monitoriing the hitchhikers. Not only did they look good but they were growing. Since I was using cured rock from my system in the basement there was no cycling and no die off.
The inhabitants.
Lot's of corals- sps dominate, some lps, zooanthids etc.
The fish:
1. one blue spotted ribbontail stingray.
2. Varoius leopard wrasses.
3. Large Black tang.
4. Yellow scopas tang.
5.African blue hippo tang.
6. Chevron Tang.
7.two purple tangs.
8. Orange spotted rabbit fish
9. Two scribbled rabbit fishes.
10. Fairy wrasses.
11. Dragon headed pipefish.
12. Gem Tang.
13. Flame fin Tang.
I think the tank has a small fishload. One interesting observation is the fishes behavior, everyone that has been over has said that the fish don't seem to fight. I believe the ability to get away from each other and out of sight from the main viewing pane makes a big difference. The different tangs and rabbit fishes actually school. A red sea sailfin tang actually started to nip the tail of the stingray so he is being donated to a good home.
Thats all for now. I will check back and periodically answer questions and add to the info. I will gladly share all I can with everyone. Reef central has been one of the best tools in my tank design and knowledge acquisition. I will also try to post pictures over the winter( I will have to figure out how). Work and the new baby will keep me swamped for the next few months but things may slow down to a normal pace sometime. Thank you everyone for posting the pictures and Videos and Thank you everyone for the interest in the system.