All this is new to me, but very impressive. And I thought the "system" was the next best thing to replicators and holodecks. I'll tell ya one thing, though, when I first got involved with the saltwater department we had all individual tanks - mostly 70 & 30 gallons. Every time (which was a couple few times a week) a shipment came in, partularly with the inverts, we "held our breath." Even though you pull out what you think was obviously d.o.a., there stood a good chance that either you missed something or something else, on the verge, did die. It also set off a chain reaction and the tank just had to be drained and filled again. There were times when you unintentionally exceeded the tank's capacity for fish, and the next morning you discover - wipeout. It was ennerving to leave work with everything seeming to be fine and coming in the next morning to have a tank be wiped out. The system eliminated THAT experience and you can stock 2-3 times as many fish per gallon as the independent tanks. It also made a tremendous difference between shipment receipt and morning after mortality. Reluctantly, I was also finally convinced to keep a low concentration of copper. Never experienced cryptocarian again. We never did anything advanced with the inverts. I DO remember bringing Tonga rock once, as well as Florida live rock, on occasion. However, we weren't geared toward creating reef tanks. When you are a wholesaler, you just bring 'em and move 'em out as fast as you can. I do remember live sand. Protein skimmers were fairly new. We brought in our corals from Indonesia and the fish & some inverts came from the Phillipines (only because you had to for variety and price), Bali, Hawaii, and Sri Lanka. We also brought in tank-raised clowns (percula & tomato) from Florida. As with freshwater, the livestock travel for days and one never knows just how stressed or alive they will be on arrival. So we were constantly dealing with meds, acclimation, and bacterial diseases. Wholesaling is significantly different that the local petshop, which is also different from the home tank. Well, that was my experience.