he does have more fry, i spoke to him not so long ago and he had about 50-60 left, it doesn't excuse the fact that the first lot were sent the way they was and ended up how it did, and also the amount of time it took to send replacements either. but im glad you have them now and im sure you would get at least a couple of pairs out of what you have! be pretty unlucky not to.
four of mine are now about 3" and the other 5 ( as the cutteri pair killed 1 of them!) are a little over 1" which is a big size difference, don't know why that is?!?!
anyway, i was feeding mine mostly bloodworm to start with but they didn't seem to grow very fast, but they have shot up in size and become far more colourful since i started feeding tetra prima, i would recommend you feed this to yours to see best results. mine also go crazy for krill!
good luck and i hope they all do well!!