Oh really..well then let me add that I've had far greater success with ADF's from shops, both chain and mom and pop, then I have with fiddler crabs, so I would consider them an even larger risk. Unfortunately there is very little you can look for at the time of purchase to determine how healthy they are. It's not at all uncommon for me to replace a crab, where as my frogs nearly never die of anything but old age. It's a shame because they are really so much fun to keep and watch. Nearly all of the specimens for sale in the US are wild caught from brackish mangrove swamps in Florida, and then they are typically kept underwater even though they must have access to air to dry out, and to make it even worse it's often fresh water instead of brackish, which is probably why they often don't last long even if kept properly after time of purchase. They are nearly impossible to breed in captivity, or it would probably be alot easier to get your hands on healthy specimens. If by the frogs looking unhealthy you mean they look very skinny, you can usually save those little guys with lots of fatty high protein foods (bloodworms & brine shrimp), but ones that look bloated should be avoided.
