You definitely have found the right place. This place is full of very useful information and friendly people willing to help. Yes, Grey's are a very hardy species from what I gather. I don't have any experience with them but I would love to keep some in the future. Touching alittle on your comment about getting more critters, generally it is not wise to mix species in one enclosure. Different frogs release different toxins that can be harmful to one another, so keep that in mind. Enjoy.