How to tell the difference between a regular jack dempsey and a blue gene

[doomiedee]

I want to know how to tell the difference between a blue gene and a normal jack dempsey . I think this male might be a blue gene but im not sure. Heres a pic of him.

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[anarekist]

looks like a regular.

 

[Loves severums]

The only way to know if a JD is a BGJD is know who their parents were. At least one of the parents has to be an EBJD or BGJD in order to produce (some) offspring that are BGJD.

 

[doomiedee]

Oh ok . I thought it might have been a blue gene. I dont know if the parents are blue genes or not . I got it from my lfs as a trade for my old 40 breeder.



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[sun catfish]

wait but i have heard that the purple on the for head was a bgjd or is that just a myth becaus your jd has a purple head

 

[Loves severums]

wait but i have heard that the purple on the for head was a bgjd or is that just a myth becaus your jd has a purple head

it not true it a myth
there is no way to tell based on physical traits or actions/temperments. The only true way to tell is breed them with a known BGJD or a EBJD and see if you get EBJDs.

 

[oscaroo]

Why would you care if it is a blue gene if you can't even tell LOL.

 

[Andrew1002]

Looks normal to me... actually looks IDENTICAL to my male. Here he is

Looks identical now but not then. That's a couple month old pic. He looks just like yours!

I'M ANDREW AND I'M A FISHAHOLIC
-Andrew

 

[oscaroo]

Looks normal to me... actually looks IDENTICAL to my male. Here he is
View attachment 779662
Looks identical now but not then. That's a couple month old pic. He looks just like yours!

I'M ANDREW AND I'M A FISHAHOLIC
-Andrew

Yours has more gold color on it. His is a lot more blue on it.

 

[ecoli73]

Pick the one who is wearing a pair of jeans.