A couple of years ago I captured several larval Lysiosquillina in the water column. They were about 2.5 cm at the time and quickly molted to postlarvae. They were allowed to burrow in sand and have been reared in the lab since. They are now about 5-6 cm long and feed ravenously on pieces of grass shrimp and fish. The burrow is still a simple vertical tube and these animals will not be reproductive for several more years, but I thought mantis shrimp lovers might like to see how they are progressing.
Roy