The way they are collected here is with a PVC pipe with plunger inside. Can be collected for personal use for bait. Need saltwater fishing license to collect. They superficially look like a cross between a mantis shriimp and pistal shrimp. As far as I know, they are detritivores. Funny this makes the news as they are very common on Texas beaches. They like to be in the wash zone, so not sure how they would adapt to aquarium.