Based purely on ear tab coloration PS and RES could easily hybridize. Coloration and color pattern is one key feature that fish use to recognize a mate. However natural crossing of these two species may have some reproductive behavioral differences that prevent hybridizing. Some experimentation will provide more answers. A hybrid RESXPS would be an interesting fish a good snail eater with possibly more tolerance to northern winters.
I agree 100%, and lepomis hybridization experiments I find fascinating. Maybe I will try PS/RES in one of the free cells I have...I've got the RES, someone just needs to hook a brutha up on the PS.
