my pair of L.Calliurus spawned a couple days ago and everything was fine. the fry started to come out tonight. but the male seems to pick up the fry that come out of the shell and keep the fry in his mouth for a bit and puts him back in a hole on a shell. its about 1/2deep and on top of the mouth of the shell. *** never seen other shellies do this before. he picks up any fry he could find. the only real predator in that tank is a lonely male betta. theres a minnow in with them but he doesnt do anything but eat and sleep. why is the male picking up the fry and putting them in the little hole? one more thing, one of the fry seems to be only about 3 or 4days old from being an egg while the rest are all able to dart and look like fry. hes just a translucent fry with a big egg sac on him. everyone else is fine. why is he under developed?