I visited a few months ago. Chris has an impressive place with a big system with a showroom and a large warehouse. He has a 1,000 or so gallon polypro tank for fresh ocean saltwater deliveries. The water gets pumped WAY up over shipping dock doors along the top of his warehouse and down into several very large rectangular vat tanks (maybe 500g?) that each have a large display tank at one end and a trickle filter sand refugium at the other. The water comes out over-flows and trickles through maybe 10" of sand into a large apple picking crate sump. He claims to have a natural ORP close to 400 without ozone. Also, it's interesting that even with 5000+ gallons he uses Fiji Gold (only) for supplementation. I would have thought he would use a low cost DIY supplement, but he hasn't even tried it. It's a must see, but it's a about 25 minutes from LAX so be careful if you do it between flights like I did.