I'll spare the backstory and get right to the thick of things. Live Rock, purple lobster, xterminator trap. Keep baiting and he's all over it. However, I can't seem to get him to trigger the latch. I know the thing works, my cleaner shrimp set it off. Anyone use one of these traps? Please let me know if you've had any success. Also if anyone has any tips on catching a purple lobster I could use the help.