The pool in the cave actually had a rather solid population of critters. Most noticeably--sculpin, darters, crayfish and two types of minnows. I also found a number of caddis fly larvae among other things. I'm not positive on the minnows, but I think they may be Stonerollers (an ozark stream minnow that appears to "graze" on algae). So, I anticipate that the pond will end up with all of the above despite no affirmative stocking. The only trout I could reasonably source appeared to be RBT. Thus, about 370 RBT went in. I may add some add'l forage later, but I'd like to see how the things already there do. If nothing else, the pool near the cave may be able to serve as a sort of incubator for forage. I'd love to add some Browns, "Tiger" or Brook trout, but sourcing is a problem.