Did we ever determine what species Squishie is? Oops, just looked at your past posts and you said she was a briareus.
I put briareus hatchlings in a mature tank and one did grow up to the age of over four months. It was just eating amphipods and other things in the tank, and eventually hermit crabs and small snails. If there you have friends that have a safe tank for hatchlings, you might want to be ready to offer them some. As soon as they hatch, the little ones will hide in your tank.