I did this with shrimps also here https://www.reef2reef.com/forums/do-yourself-diy/95256-fresh-shrimps-heads-coral-food-no.html
Put in blender with a cup of saltwater, blend for 5 minutes and strain, freeze ice cubes, put in a cup with saltwater defrost and feed Free, good, fresh and softies love it
Put in blender with a cup of saltwater, blend for 5 minutes and strain, freeze ice cubes, put in a cup with saltwater defrost and feed Free, good, fresh and softies love it