Help sex EBJD

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Plecostomus
MFK Member
Oct 8, 2009
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Gold Coast
Wondering if anyone could sex this fish?? Its for sale in my local area. I will take it if female but a male will likly cause probs with my regular male jd20280296_10154997298709755_3144715868456754314_o.jpg
 
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ok thanks.... i didnt end up getting him as i suspected male..... Now i want a EBJD..... what type of babie would i get if i bred a male jd with a female EBJD?
 
ok thanks.... i didnt end up getting him as i suspected male..... Now i want a EBJD..... what type of babie would i get if i bred a male jd with a female EBJD?


unless the JD is carrying blue gene already, you will just get regular JDs. they can however carry the recessive blue gene, so across several generations and raising fry to become breeders it is possible to begin breeding EBJD.

it is not an easy project, especially if you want anything resembling quality at the other end of it.
 
I agree with the others, i think it is a male. It's an awesome male. I would love to have that one. Where is your local area --- I'm coming over from California to buy it :).

If you breed a regular male to an EBJD female, then all of the fry will look normal, but will carry the EB gene -- we refer to them as 'Blue Gene' JDs (we use the acronym 'BG'). Thus, if you bred siblings of this spawn (BG x BG), you would get 25% EBJDs, 50% BGs and 25% regular. We, EBJD breeders, suspect that the genetics follow autosomal recessive patterns.

If you bred an EBJD x BG, then you would get 50% EBJDs.

This is generally what I see in my spawns.
 
I agree with the others, i think it is a male. It's an awesome male. I would love to have that one. Where is your local area --- I'm coming over from California to buy it :).

If you breed a regular male to an EBJD female, then all of the fry will look normal, but will carry the EB gene -- we refer to them as 'Blue Gene' JDs (we use the acronym 'BG'). Thus, if you bred siblings of this spawn (BG x BG), you would get 25% EBJDs, 50% BGs and 25% regular. We, EBJD breeders, suspect that the genetics follow autosomal recessive patterns.

If you bred an EBJD x BG, then you would get 50% EBJDs.

This is generally what I see in my spawns.
Do you find that you get better quality or stronger fry if you do EBxBG or BGxBG breeding pairs?
 
I've bred both pairings. In my experience there is no difference. I believe that the key is early separation so that the faster growing BG will not outcompete the slower growing EBs.
 
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cheers for the imput guys, someone else ended up snapping up that awesome guy. I didnt really have intentions of a breeding project, just curious as i knew it was quiet the process. Was more concerned about the fighting that may have occurred from having 2 males in the tank
 
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