Jack Dempsey


The Jack Dempsey is an awesome addition to your fish tank! We’re updating this profile so check back again but in the meantime, if you have any questions, please ask in our forum! Click here to start asking your question!

{ 2 comments… read them below or add one }

Juan Venegas June 5, 2011 at 2:42 am

I have Jack Dempsey that is about 2′ long, VERY AGGRESSIVE, he has Two Tiger Oscars and Two Convicts as tank mates, but always picks at them, even the larger Oscars which are about 3′ and find it hard to mate with other fish!

Thomas Neil June 28, 2011 at 7:42 am

I have a JD that I have had since he was about an inch long, after several years he is now nudging on 7 inches. After reading the many, many other descriptions of this fish’s personality I was expecting him to grow into a real pugnacious fish with attitude! However this has not been the case with my particular individual.

He is in fact a very tame fish, he lives in a fully planted tank that he shares his with a school of columbian tetras and a bristlenose pleco, the most aggression I ever see him display is when the pleco ventures into his cave, and even then it’s only a very brief nudge and its over. He hasn’t eaten a single one of the tetras, whether this is because they are too fast for him or that he has grown up with them and doesn’t see them as food I’m not sure, but the tetras have even managed to successfully breed whilst in this set up.

I feel as though I definitely have a bit of an unusual JD on my hands, but I guess it just goes to show that every single fish can develop its own personality and not necessarily conform to the ‘stereotype’ each particular breed is subject too.

Leave a Comment