Chasnkevin4ever
Aquarium Advice Freak
I don't know what you should get, but I had a JD years ago who killed his mate and ate everything else in the tank. They may be pretty, but oh so aggressive. When I suggested otos I misunderstood you because I didn't realize you were talking about putting them with your JD.
No they would be for my other tank. I'm thinking of getting a snail or something for the jacks tank, maybe he is pretty aggressive eater!