Ive tried to ID the female but many females of the genus look simliar, and it might be quite hard to get a positive ID. Raf couldnt even say for sure... other than its a Protomelas genus. I suggest posting these pictures over at Malawi Mayhem and see if anyone over there has some input...
As far as hybrids go its a touchy issue. Some people will kill hybrids and others will keep them because 'they are not any less of a fish'. Im somewhere in between on the issue....
But i highly reccommend you try to find a female for your electric blue, or if you can ID your female try and find her a male.
Dont try to breed the fry to the male to try to 'breed out' certian traits.... lots of people do that but that just pollutes the gene pool with hybrids like those 'yellow yellow' labs that are really crosses with red zebras.
With these fry I suggest you let nature take its course. Let the female spit the fry in the tank and they can fend for themselves. If some live, then you will have mutant little fish

, but likely they will be eaten naturally, just like in the wild. By the time they are spat by the mother they should be able to find food themselves. Because they are hybrids i dont suggest going out of your way to feed them, but for future reference finely crushed flake and baby brine shrimp are great fry foods.

-Diana
PS- I just looked at your 'electric blue'... it definately is not a true one. Likely a hybrid. What did you buy it as?