Shrimp for pincushion urchin

[Kapachuka3]

I have some frozen shrimp, you know the white type in the circle, with some kind of sauce in the middle. Could I feed that to my urchin named Barlow if I thaw it out? I usually feed him seaweed but it kinda gets everywhere in the tank.

 

[Reefing_addiction]

I have some frozen shrimp, you know the white type in the circle, with some kind of sauce in the middle. Could I feed that to my urchin named Barlow if I thaw it out? I usually feed him seaweed but it kinda gets everywhere in the tank.

I think they only eat algae. Maybe some macro but I could be wrong