EBJD to me is just a gorgeous color version of a JD,personality wise will be pretty much the same in my opinion.I notice my regular JD is laid back minding his own business,then next he goes after everyone.
My deformed runt of a ebjd picks on fish his own size but will not mess with the big boys. He will be down right nasty if it's a fair fight.
He is over a year. He has cloudy eyes not very healthy or well bred fish. Yet he will not die. He had pop eye but it cleared up in a few days. My ebjd is ugly but and small but really hardy.