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!
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Rose - 2012-06-23
hello i have a ebjd, i also have a regular jd. i believe these two are flirting and we all know where that leads to. So my question is can the two of them spawn even though they are diffrent.

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  • Jeremy Roche - 2012-06-23
    Yes they can.
  • chad - 2012-12-02
    Yes, in fact they becpome a stronger breed of ebjd which is actually encouraged to strengthen the fish and have less problems...
  • JOE VANN - 2013-03-16
    I bought a EBJD about 31 days ago,3/4in. he grow close to 5inches.What read comments slow growth not here,he growing fast.He grow up with commmunity fishes,I watching his mood,just maybe they will make it.5community fish everything ok for now.
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Nanomedic - 2012-04-29
Hey everyone, New to the aquarien world. I have a 30g tank with one EBJD and a feather fin cat fish as long as two golden gromauis and one indian algae eater. I'm curious to know why my EBJD I have plenty of cover for him in rocks caves and plants he just hangs out in the Cave all day. But the other day I noticed the algae eater was trying to latch on to him and chases him around i bought theses algae waffers and it has seemed to help but my EBJD has been like this since i got him i do frequent water changes and everything seems to be working top notch yet no Activity from my EBJD. However when I introduced the two golden gromais. My ebjd was all over the place chasing them and such. Hopefully you guys have some suggestions because i really would appreciaite if tips or hints as to I would love to enjoy my EBJD. THANKS!@

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  • Jeremy Roche - 2012-04-30
    Sounds like he has made that cave his territory. Nothing wrong with that. The Dempsey will however be to aggressive to have gouramis in the tank.
  • nanomedic - 2012-05-06
    Awesome, thank you I have noticed a change in my EBJD over the past couple days he has been more active and is more freely swimming. He some times chases the goruamis around but for the most part just leaves them alone. But if I have anymore questions I will be sure to post thanks!
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Linda - 2012-11-17
Have a 36 gallon bow front tank. I have 1 peacock eel, 3 boesemans rainbow fish, 2 odessa barbs, 2 sterbas cory, 1 giant danio. can i add a EBFD to this tank? I was also looking into a rainbow shark. any thought?

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  • Jeremy Roche - 2012-11-18
    The Dempsey is not a good fit for this tank.  The tank is too small to add one with any fish.  On a side note the Giant Danios do best in groups and add some excitement to the tank.
  • duff - 2012-12-21
    Not sure of the size of some of those fish but a 36 is not all that large if you dont want to get into trouble follow a rule of thumb 1 inch of fish per gallon of water all the rest is hit and miss have fun trying you can allways take him back to the pet store and trade him
  • duff - 2012-12-21
    Not sure of the size of some of those fish but a 36 is not all that large if you dont want to get into trouble follow a rule of thumb 1 inch of fish per gallon of water all the rest is hit and miss have fun trying you can allways take him back to the pet store and trade him
  • Mark - 2013-01-28
    That can be proven false...a juvenile ebjd growing up among community fish, builds a tolerance. My 75g tank at one point consisted of neon tetras, white clouds, clown loaches, a ghost knife, gold severums, and 3 ebjd, and thrived for 2 yrs. Wasn't until 2 of my ebjs paired off that an issue occurred. Having Electric blues most of my life, I find their aggression is half maybe more then a normal jack....
  • Mark - 2013-01-28
    Rainbows are a fast schooling fish, assuming you get a young ebj, it will be ok... I've noticed ebjs do very nice with severums, ebjs being slower growing, the severums dwarf them quickly. They might chase one another a lil but no harm was ever done in my tank.
  • Mark - 2013-01-28
    Sharks are also fast growing and though community labeled fish, also tend to be fast, occasionally nippy, kind of aggressive the bigger they get. Sharks can hold their own... and every cat fish and pleco tends to be treated with mild neglect in most tanks... I'm sure they will be fine. Establish a territory for the ebj if you get one (rock cave, driftwood haven, etc) you should be ok.
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Gardner - 2012-10-18
I have two Oscars three African cichlids and a local fish all get along fine just chase each other around. My tank is 110 gallons I'd like to get a blue Jack Dempsey any suggestions.

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  • Jeremy Roche - 2012-10-18
    Make sure to have areas for the fish to hide and ways to break up the lines of sight.
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Andrew - 2012-04-18
I am growing out a small group of 5 young fish for display. I belive they are all males. I am wondering if I should add another to bring the group to 6, and if the males will tolerate each other given a large tank? Any advice appreciated. Cheers.

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  • Jeremy Roche - 2013-01-15
    Really depends on the size of the tank.  These fish will require a large tank as they grow.  Also will need strong filtration.
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Rodney - 2012-01-19
Yes I want to by a whole lot of ebj's.. I want maybe ten to twenty but I want at least five to be at least three inches....I am in Connecticut ...can someone recommend a Place where I can buy them from at a fair price?

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  • Jeremy Roche - 2012-10-24
    Wow thats a lot of Dempseys!!  What sized tank?
  • duff - 2012-12-21
    Remember 1 inch of fish to one gallon of water they will grow to about 8 inches so ten you would need a 80 gallon tank its the one place most people make mistakes over crowding and that drives the ph and of course kills fish but you could try kijiji or greggs list good luck
  • aredfruit - 2013-01-03
    overcrowding drives ph? never heard of that, and if you want 20 ebjds ur gonna alteast want a tank over 200 gal.
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Devin M. - 2012-08-05
I have a 30G (for now, until fish get bigger and then will be placed into a 125G) with one albino Oscar, 1 JD, a small fire eel, Dino bichir, and now one EBJD. They all mind their own business, and there has been no territory disputes. My question is, I added the EBJD two days ago. He found refuge in his own drift wood cave. However he still hasn't eaten. I've even tried hand feeding him, he doesn't act afraid of my hand but he will not eat. This morning I noticed he is now swimming almost at a 45 degree angle. I have moved him into a quarantine tank just incase it's some sort of ailment, but there are no other indications. The family ran business I purchased him from had him in a tank with several other JD's and EBJD's, none of which looked ill. Any ideas as to what is going on? He's roughly 4 inches as of now.

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  • Charlie Roche - 2012-08-05
    You might want to do some more homework - I doubt that 125g is going to be large enough for all these fish.
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sean - 2012-06-23
i want to know if it was safe to to feed a earthworm to my blue dempsey? if not what are the signs and how can i solve the problem

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  • Jeremy Roche - 2012-06-23
    Make sure to clean the earthworms before putting into tank.  They will love them!
  • sean - 2012-06-28
    Thanks it's nice to finally get some straight answers.
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Katy - 2012-04-15
Hey.... I have a 5 year old EBJD and as of the last 2 weeks is getting a large bump on his forehead... Everyday it seems to be getting bigger. No marks, slime or discoloration just one huge bump... Any thoughts on what this could be? Pet stores in my area are useless...

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  • Jeremy Roche - 2012-04-16
    It is pretty common for a Dempsey to grow a bump as the mature.
  • dfrost - 2012-06-05
    I own jack demseys. The knot on his head measures aggresion
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Nanomedic - 2012-05-13
Hey again. So things have been really looking up in regards to my last comment there is wayyy more activity. I have done some re-arranging and have lots of plants and drift wood in now and it seems my EBJD is very healthy and active. I do however have another question now, i would like to know what kinds of other fish i could Put in my aquarium it's a 50 galleon tank and i have a EBJD a feather fin cat fish, and an indian algae eater any other suggestions???????

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  • Jeremy Roche - 2012-05-14
    There are tons of fish you can try, but remember adding these types of fish will end up forcing you to get a bigger tank as they grow. I always liked to add Texas Cichlids with my Dempseys
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