Excellent tanks invinc, G.Alexander, and ggjeff.
This thread has been great so far. I've learned so much more from it than all of the controversial zeo threads on a couple other forums that I followed, which were always shut down and rarely did any good information come from them. Reading this thread has really got me thinking more about this method and "maybe" even trying it out in the future.
I have a question on skimming. It seems that from what I've read, zeo users are typically using high performance venturi skimmers set to produce very dry/dark skimmate. I run a MR-6 dual beckett 4 foot skimmer on my 400 gallon BB system. I tend to skim wet. So why are all the zeo users going for the dry skimmate? My guess would be to allow the bacteria to stay in the water longer for corals to feed on it rather than stripping it out as fast as you can.
One thing that worries me about possibly trying this system is what would happen if a contamination of bacteria or other supplement or some other unforseen disaster happened on the manufacturer's end? There would be a long period of time where the supply would not be available to the zeo users. Would a lot of systems go downhill really fast? What would happen if T. Pohl shut down shop for some reason. Although this would be extremely unlikely, as he is surely bringing in the big money, but it is always possible. What would happen if a natural disaster like an earthquake or tornado took out T. Pohl's business? These aquariums are relying on the products being produced by T. Pohl. If production stops, there aren't other products that can be substituted. These tanks are all relying on one person to keep providing them with the elements needed to keep running. Other methods of reefkeeping rely on natural biological processes in the tank itself. All that is needed to keep them running and in balance is water circulation, light, and temperature control.