I second (or third) that they're all bluegill. Contestant #3 might have just a teensy bit of HBG in him; maybe his mom saw a picture of one in a magazine while the regular-strain male bluegill was milting the nest. But I'd be more inclined to say he's one of your new arrival CNBG.

With two feeders running on a pond that size, in TX, you can grow some monster bluegill. This time of year you should feed at least twice a day; I have all my feeders running three times a day and the bluegill are eating like the apocalypse is tomorrow and someone sent them advance notice.