I have seven new keets and two of them are having real problems - they can't stand! They had a hard time coming out of their shells and we had to help them in the end because their membranes started to dry. They peep and their feathers are dry, but they aren't fluffed. They are just laying there and they are kicking trying to gain ground trying to stand, but can't gain any ground. It's been about 20 hours now - is there anything I can do to help them?