Difficult to see but my boyfriend has a geosesarma tank and we were surprised to find babies! Guess he's doing something right. (Crab is to the right of my finger)
It has matured more at this point but this is the current setup. It's 18"x18"x36". When I originally made this post though they were in a 10 gallon cube.
Do you still have the vampire crabs?
Cool!
Nice, congrats! Post a couple pictures of the adults too when you get a chance.