Lemon Hourglass tree frog.

[killerecho]

Yes Dendrosophus ebraccatus is known as the hourglass tree frog. I don't think they are particularly rare in wc form, but the only person I know who breeds and sells cb is Michael Novy of Rainforestjunkys. Very cool frogs. They should have brownish patterns against a pale yellow backdrop, like in the picture. How big is the one at the petstore? Amazon milk frogs (Trachycephalus resinifictrix) have black and white patterns but they get much bigger.