I'm sorry it died. When the others morph into froglets you will be able to tell if they are P.regilla immediately. We have a care article http://www.frogforum.net/care-articl...orus-frog.html that may help you take care of them. Make sure they have a way to climb out of the water when they morph and have some flightless fruit flies ready to feed them, they are voracious when they are young.