Philter4 thanks for the info. I still can't find a good match. It might be in the genus Clibanarius. There are a few crabs which look similar but they don't have bluish-eyestalks with orange eyes, red flagellae, & red antennae, and spots on all the legs like this one does. Sorry Spiff.
If you want to know about food habits do a search on Clibanarius and keywords like "feeding" "food" "prey" "diet". That should get you some relevant information.