Porcelain crab pair

[tlhood]

So after having one rock in my tank that was from a LFS since January, I knew that a porcelain crab hitchhiked his way in. I just noticed today that there are actually two, I've just never seen them both out at the same time, until now. They both are blue and spotted, but one has pink under its claws while the other is white. Anyways, that got me thinking, is there any chance that porcelain crabs can successfully have offspring in the tank?