Animal Stories - Electric Blue Jack Dempsey

Animal-World Information about: Electric Blue Jack Dempsey

The Electric Blue Jack Dempsey is one of the bluest tropical fish, and it is definitely one of the most beautiful!
Latest Animal Stories
Melissa Sellew - 2014-11-19
I have an adult male Electric Blue Jack Dempsey, I recently took in a rescue fish its a Kissing Guorami we had them together for about a week before we had to separate them due to my Kisser fish trying to kiss Mr. Jack her lips had bite marks and feeding time was not fair to the Kisser due to Jack not letting her get any food... So my question is what would be a good tank mate for the Kissing Guorami I don't like seeing her all alone! Any suggestions? There both in 40 gallon tanks

Kent Robinson - 2014-10-17
I live in Indiana (Indianapolis area). I've got a 125 gal. tank. I have 2 med. sized Oscars. I am interested in the elec. Blue Jack Dempseys. I'd like to buy one or 2 large ones. Does anybody know where I can buy large ones either in a pet store or online? Thanks!

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  • Mike - 2014-11-12
    You can try The Reef.
Anonymous - 2014-10-05
I no this is probably a stupid question but if I put a jack Dempsey in with a few mollies would i lose all my mollies?

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  • Vulgarcowboy - 2014-10-05
    yes, it will wipe them out!!!!
jo - 2014-02-21
I've had a blue electric for two and a half months, he was about one and a quarter inches when I got him, he is now close to three inches. He is in a 40 gal with a catfish. He does very well being alone. He is gorgeous.

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  • d.umlywufg - 2014-04-13
    I had an electric blue Dempsey 8 years ago, very aggressive, 12 inches long, lived two years.
Taylor - 2013-02-27
i have had a EBJD for around 5 months now and it is no more then 1 and a half inches in length, do that sound right to you or is it growing slow?

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  • Jeremy Roche - 2013-02-27
      Not a bad thing.  There are a lot of things that control growth.  Tank size, temps, feeding, but you are in no way doing anything wrong based on growth.
  • Taylor - 2013-02-28
    ok thank you for the info, at the moment i have it in a 125L tank with about 12 small community but will be moving it 2 my 240L tank with my 2 oscars when it is big enough. the temp is 25/26
  • Max miller - 2013-03-09
    I have 20 3 inch cory catfish with 1 electric blue jack deamsy she is 2 inches big they are In a 45 then I will move them all to a new them into a 80 will they all be ok in that tank
  • Jeremy Roche - 2013-03-10
    Should be fine.  They will enjoy the increased room!
  • Max miller - 2013-03-10
    So the eletric blue jack demsy will not eat the cory catfish and can  add 1 ram if so what kind? Finally this is the last question can I add my convicts with them they are the same size but the male? Thanks a lot :D :P
  • Max miller - 2013-03-10
    So the eletric blue jack demsy will not eat the cory catfish and can i add 1 ram if so what kind? Finaly this is the last qestion can i add my convicts with them they are the same size but the male? Thanks a lot :D :P
  • riz - 2013-06-05
    As a rule of thumb, fishes tend to increase in length 1 inch/month, depending upon how big aquarium is.
  • Jeff - 2013-11-12
    Although this fish is hardy they are also a very very slow grower and if they get into a bad spot when young and experience a lot of stress that slows them down 10 fold. I have 2 elec blues that were the same size as a red texas cichlid and an oscar and 2 africans about 1'. Within 3 months everything was twice as big as the blue dempsies. I am going on 7 months now and the red texas is near 6' and one blue is nearing 3' the other got bullied bad by the texas and is still under 2'. I now have a plexi sheet dividing my 2 blues from everything else.
tara - 2013-08-19
Hi I have a 40g with a edjd that I bought in April of This year. He/she is with two pictus catfish, rainbow shark, and a male and female brislenose Pleco. I was wondering what would make a good tankmate?

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  • Jasmine Brough Hinesley - 2013-08-20
    Try this Fish Finder application. You can enter in all your tank parameters, and it will give you suggestions on fish! It is pretty neat.
joey mathews - 2013-08-09
I have a 45 gallon tank with a 1 1/2 inch EBJD and I really wanted to add some more fish in the tank, preferably other cichlids. Any suggestions on what type to put in with him?

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  • Jasmine Brough Hinesley - 2013-08-22
    You might want to try this Fish Finder application. You can put in all the parameters of your individual tank, and it will make recommendations for what type of fish! It is pretty neat.

Edd miller - 2013-06-20
So i have right now a angelfish and cory catfish tank can i add a small electric blue jack Dempsey cichlid and the tank is 45

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  • Clarice Brough - 2013-06-21
    See the social behavior section up above for an idea of how these fish get along with others. I think your other fish will be at risk.
cichlid man - 2013-06-20
I was at petsmart last week and i was looking and i saw a jack demsy cichlid, the electric. So i have a 45 gallon with 1 angelfish and 3 cory catfish, Can i add a small electric blue jack demise cichlid.

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  • Clarice Brough - 2013-06-21
    I suggest you read the 'social behaviors' section up above.... then make your decision:)
john - 2013-04-01
ive a litter of ebjd(male) x bgjd(female) 2 weeks old,when will i see the difference in them(more yellow ebjb fry)they all look like normal jd fry at the minute.thanks john(england).

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  • Clarice Brough - 2013-04-17
    The electic blue babies will be whiter, especially if viewed from the top, with broken stripes, just on the top and bottom. The regular jack dempseys will be more gray and have full stripes on the bodies. Also the electric blues are smaller. That is what I understand (we are breeding these guys too... and that's what we were told to look for!) Good luck:)
  • Anonymous - 2013-05-02
    thanks clarice,ive bred many normal jack dempsey litters,bought 2 ebjd early last year one male is a good 6 inch long he paired with what i thought was normal jd female,shes very dark black in colour about 7inch long,had fry febuary,i also was looking for light(opauque)colouring.managed to separate about a month ago whiteish colour ones 8 of them,various sizes some no smaller than stripey i see the remaining young are nearly all turning whiteish,maybe 20 or more out of about 50,most are just as big as the darker ones and cant see any signs of them getting bullied or bothered so leaving them in the big tank all together.all have got blue specks but none more than the darker ones so far.all are eating well(bloodworm mainly)..thanks again for your reply and i'll update soon.cheers.
  • Clarice Brough - 2013-05-02
    Sounds really cool, and so glad they are all doing well. It will be interesting to see how they all turn out in the long run! Looking forward to your story:)