I ended up giving them to my lfs without credit. I could not sell them at all, nobody wanted them. I would have been happy to mail you some, but I have never mailed fish before and really don't want to try. The problem is, nobody wants brown fish. At 2" the males were still more a tanish blue than the bright blue of an adult. Or, I had all females. I have one I am growing out for a friend and it is 2" now and still not blue. It could be because of the huge dominant male too, so its keeping its colors hidden. If that is the case with all Greshakei at a young age, it may be why you can't find them. I ended up giving the females away too. They would spawn after only a week after releasing and my tank was getting over run by them! The fry were bigger than any other fry and smarter, so they would take over all the nooks and cranny's, making it impossible for other fry to make it. The females also made my male overly aggressive and he would dig obsessively, spitting sand into my filter intakes and clogging them up. He has settled down now.
I am done raising fry for awhile. My two lfs told me they can't take anymore for awhile because they are full. Plus, I need a break! I am only going to raise Bolivian Ram fry now. Everyone still wants those because they are hard to find here. So, I am going to grow out my last Red Zebra and Acei fry, try to sell them on Craigslist and find them homes. I will just let the Mbuna mom's spit in the main tank for awhile and any that make it is fine. Its really fun in the beginning, but after 8 months of constant fry, it gets tiring! I have the extras I wanted to fill my groups out now. It got to the point that I was so busy with fry I stopped just enjoying my tanks for the peace they gave me.