We have about 100 one month old axolotls and this is all new to us -- we thought we had two females! We have been feeding them brine shrimp since they hatched, but we are getting very inconsistent results with hatching lately for some reason and not sure why. Can someone say when they switch over from shrimp to something else, and what would be best thing to feed them next? They're about 1.5 inches long, still too small for pellets, and would love something easier than the brine shrimp. Any help would be greatly appreciated!