PH question and EBJD breeding

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Bktgifridays

Gambusia
MFK Member
Jan 7, 2012
586
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Western New York
I feel somewhat ignorant for having to post this, but after being 3 years into an EBJD breeding process I'm stumped! After finally growing out my EBJD male's and having them breed successfully with regular JD females. I've finally gotten to the point where I've introduced BGJD females to my males. NOW THEY WON'T SPAWN! I've tried EVERYTHING never thinking about my water parameters because it's never been an issue at all before(EBJD'SxJD'S were spawning every 3 weeks). Now after, running out of ideas I finally tested my water and my pH is pretty low(around 6.5) and my water is BEYOND hard! What could be the cause and solution to this? Tested my tap water and it is not even close. pH is around 7.2 and the hardness reading is not nearly as high(yet still pretty hard). ANY help would be greatly appreciated! Thanks!

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Substrate , would be my first guess.

But I would just do some big water changes. Straight from the tap, and dechlorinate, then if the male is uninterested, introduce another male. Or vise versa.

Spike

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I would usually try a few females with that male to find one that he would be interested in and would spit out EBJD. Now..just because a female comes from a EBJDxBG pair does not mean it will carry the BG traits. I have made that mistake early on and took a whole year before I was able to grow enough BG to start breeding EBJD's (people usually dont sell BG females). If you have a few female, place a few in with the male. Whoever he is interested in, he would probably pick her and bully the rest. Take out the rest for back up incase that female doesnt give you EBJD's.
 
Well icantquit, this is quite interesting news to me! First off, my female is from a EBJDxJD spawn, and I was under the assumption that all resulting fish would be "carriers" of the blue gene(bgjd's). This is not the case? Also, it seems like my female is the one not interested. The male digs pits and cleans his spawning rock and flirts with her. Ever so often it seems like they might be almost there. Dancing around each other, and her showing her lovely spawning colors, but most of the time, he chases her and she hides...lol(kinda)

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EBJD x wild type JD = 100% BGJDs theoretically.
The problem is most when mated with an EBJD
will produce less than 50% EBJDs in there breeding.
Some will only produce 10-20% EBJDs, And on rare
occasions. They won't produce any EBJDs. But in all
these cases, The offspring will be either EBJDs or BGJDs.

Spike:grinno:
 
Thanks Dispatch. I do have a couple SD's as dithers. And I do have some other females but I'm not sure if any of them are large enough to hold they're own with my beastly EBJD male. I'm afraid they'll just get beat up. You think I should try adding them anyways? Maybe use a divider at first?

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