The pet store has plenty of tropical cats for sale, corydoras and more. The owner also enjoys fiddling with other fish that are able to possibly live in outdoor ponds in our area, hence the channels.
I don't know that anyone in our cold water area "fiddles" for catfish though.
The store proprietor, in previous years, has offered BG, GSF, BCP, TP, LMB, FHM, and probably others that he and I haven't discussed.
As for his tank of CC, all but 2 were those albino cats. I bought the 2 natural coloration fish that he had.
In my opinion Colorado Parks and Wildlife has become overly restrictive regarding the species of fish we can release into our BOWs. TP are completely off the chart; they would make a fantastic fish for algae control in our cool water ponds that grow FA all summer long, and would provide a good human food source. Triploid GC must go into a pond with screened inlet and outlet, even if the outflow goes out onto dry ground. As of just recently, we are prevented from or cautioned against stocking SMB, YP, GSF. Probably others, too, that are already very common throughout the entire Western Slope of the state. DUH
Sorry...rant over.