I purchased a very pregnant platy 3 days ago & placed her and another female who did not appear to be pregnant in a 5 gal quarantine/baby tank. This morning there are no fry and the female no longer appears pregnant. Her belly is no longer swollen and the little black eyes are gone. I have a sponge filter, java moss and some floating live plants in this tank. Can they reabsorb their babies due to the stress from transport? Its such a small tank I would definitely see fry if there was any...any ideas?