Thanks for the great pictures and info Kristen! They are definitely Litoria Cearulea. The last picture you posted looks just like the other frogs I saw and they were noticeably smaller than the Litoria. Now that I look Fiona does look a little on the blue side. Her tank mate Shrek is always more of an olive/yellow color, that's because my plants are green and yellow and he likes to sit in them.