ROTFL-what a great thread! It's always nice to know we are not alone in our battles to outwit these creatures
Charles, I feel for you.
I had what I believe to be the older brother of your criminal crab (they must have had a bad upbringing!) in my old 55. I tried to catch the bugger numerous times but he'd hole up; I think I caught every hermit in the tank, twice, but Crabzilla would never take the bait!
I was upgrading from the 55 to the 125, taking everything out of the tank and putting it in a holding tank when I finally caught the @#%^$@!!! crab. Victory was mine! I gave the crab to my son to hold onto while I ran into the other room for a container to incarcerate the wily beast when I hear my husband yell to my son "What are you doing with that??? Put that back in your mother's tank
right now!!!"
Sigh.
