PetSmart approached us a few months before they were going public. We were both located in the metro Phoenix area. They asked me to evaluate their current store systems and see what improvements could be made. According to the execs at the time, thr fish department and dog food carried the company. Everything else was a rounding error. Their fish losses were running around 30% and their store systems were falling apart in less than two years. They would receive large fish shipments on Monday and Thursday with ammonia spikes soon afterwards. I don't want to discuss other brands or companies suffice to say that there were a lot of problems. Btw, this is also where we first introduced loc line to the hobby. Before then it was used mainly as coolant hose on metal cutting machines such as mills and lathes. The design I came up with utilized a large sand filter like in swimming pools. Massive UV steriljzers, in line heaters and most important, large, very large sumps. Each tank was individually plumbed and could be completely segregated. Fish losses plummeted. System reliability improved dramatically. Their bottom line got nice and fat. Around the time they went public I got bored and sold Tenecor. The second owner took it to yet another level before finally retiring for good around 2006. Then the third owner took the helm and apparently rolled up the carpets soon afterwards. I don't know any of the history after the first sale other than the second owner really kicked butt. When I was running it, we were shipping two semi trailers a week. I think he was doing even more. Oh, no cnc. No internet. We had to figure it all out trial and error because no else had ever done it before.