saw these earlier in the week, since i lost my Angels the top of the tank was looking bare, so i went home and did some research and came home with these 2. Will be getting a coupple more females. Very good looking fish.
The bottom pic is a male and the other is a female. Breeding is not easy but if you can feed them up with plenty of live foods like small worms, fly's, glass worm etc etc then breeding is possible.
The fry are very large, mature females can produce fry nearly an inch long but 10-15mm is average.
thanks Helterskelter, i did research, and the LFS told me they were Kili's earlier in the week and google halfbeak kilifish and it does come up with stuff. They are still great fish, very interesting to watch, espesially when they flair, they look just like ducks.