I use to hand feed my chiragra and wennerae but I read a thread about hand feeding mantises and changed my ways. I decided to take Roy Caldwell's advice on the subject and not test my luck. Obviously I have never tried to hand feed the Squilla, imo you would have to be crazy to hand feed a spearer. Mine strikes at fish so fast you can't even see the raptorial appendages move, it's like a blur of light brown in front of it.