thanks for all the help. im not breeding for money just fun. i was going to supply these fish to highland aquatics to help with business
keeping Jack Dempseys and EBJDs
- Thread starter jaws19
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ia246;1544113; said:
You are correct, just a couple isolated cases of sterality i guess..
EBJD's commonly don't have any interest in breeding until around 6", and i was just saying add another inch on just to be sure you have a strong EBJD.
A major goal of EBJD breeders is to strengthen the breed. This has a plethera of benefits. These stronger EBJD's will then be able to be bred to bring out even BETTER colors and patterns, will have a MUCH higher survival rate, and maybe will even be able to be bred together (i.e. EBJDxEBJD, you don't have to get an EBDJD) This would make them more available to everybody.
i agree X24 and one of my goals is to make EBJDs easy to find in MI and harder im sure as i progress through out the months ill have more questions
I think that the isolated cases of sterility were probably simply impatience on the part of the breeder. My EBJD had several attempts before he managed to actually fertilise the eggs, and has several attempts since. His sucess rate is going up, but is still a bit on the slow side...
I actually searched around after this topic came up, and i happened upon a great debate on wether its a genetic mutation or a hybrid of some sort that brough this out.
Started with the pictures of the very first EBJD to ever come about, its right here:
http://www.cichlid-forum.com/phpBB/...&start=0&sid=f226134824284febd7c7184165ed2921
Started with the pictures of the very first EBJD to ever come about, its right here:
http://www.cichlid-forum.com/phpBB/...&start=0&sid=f226134824284febd7c7184165ed2921
No one has gotten this 100% correct as yet. There is some speculation that female ebjds aren't especially fertile. Most successful matings are male ebjd to female jd. Ebjd seem to be less robust than jds, so a larger male ebjd tends to work well with a smaller, normal female jd. All offspring of this union will look like normal jds, but will carry the blue gene (bgjd). This group of offspring is then crossed with an ebjd - could be the original parent, or with any other ebjd. The result of this union is 50% ebjd and 50% bgjd which can be easily distinguished. The key issue, as others have noted, is the need for jds carrying the blue gene (bgjd) in order to proceed. This usually means a two-generation breeding process just to get started, as no one, to my knowledge, is selling bgjds commercially (and how could you be sure since they look like normal jds anyway?).
Btw, you COULD cross bgjd with bgjd as well, but this gives you 25% ebjd, 50% bgjd, and 25% jd. Smaller output of ebjd, and no way to distinguish the 50% bgjd from the 25% jd. It might be a better way to improve the breeding (using, say, F0 jds along the way), but it makes things a lot harder with regard to the unwanted jd fry - You'd probably have to cull all the non-ebjd fry, losing a lot of bgjd fry in the process.
Btw, you COULD cross bgjd with bgjd as well, but this gives you 25% ebjd, 50% bgjd, and 25% jd. Smaller output of ebjd, and no way to distinguish the 50% bgjd from the 25% jd. It might be a better way to improve the breeding (using, say, F0 jds along the way), but it makes things a lot harder with regard to the unwanted jd fry - You'd probably have to cull all the non-ebjd fry, losing a lot of bgjd fry in the process.
Id be cautious of not adding the dempseys in the tank at the same time. If you add the female first she will claim the territory and then when you add the ebjd he may get beat up on. Also if you end up with two males you can run into alot of fighting. I had purchased two EBJD's, they were fine for the first 3-4 months and then really started to go at it. I ended up selling one at around 5.5" and bought a female regular who my male has been hangin out with alot lately but no eggs yet. I also suggest you check out the bluejax forum. Lots of experience and info on that site.
Pic of my pair.
Pic of my pair.
i personaly think theese fish are hit and miss as far as looks i like the fact that the morph is popular and fairly attractive i dont like the fact that normal jd's are being sold and weakened with this process hollywoods jd's are bomb and i would talk to him before starting anything
I'm not sure how you got to the "normal jd's are being sold and weakened with this process", but normal jds are not affected when they spawn, and responsible breeders do not allow hydridized or weak fish to interbreed with "normal" fish. Consequently, any concerns you have about "normal jds" being affected by any of this are misplaced.itzacraze;1547493; said:
Nice pair good luck.Whats that veija looking fish in back ground?BlueKiller82;1547411; said:Id be cautious of not adding the dempseys in the tank at the same time. If you add the female first she will claim the territory and then when you add the ebjd he may get beat up on. Also if you end up with two males you can run into alot of fighting. I had purchased two EBJD's, they were fine for the first 3-4 months and then really started to go at it. I ended up selling one at around 5.5" and bought a female regular who my male has been hangin out with alot lately but no eggs yet. I also suggest you check out the bluejax forum. Lots of experience and info on that site.
Pic of my pair.
