So they are both still babies or juveniles. One is about an inch big while the other is 2.5-3 inches big. I bought them at Petco and they were housed in the enclosure together. I have had them for a couple of months and nothing bad has happened yet but I want the best for my frogs and if theres a chance the bigger one will stress or even eat the smaller one then I'll put the bigger one in the new tank I got. Anyway, thanks!