This species sometimes nibbles at clams including Tridacna species.

These fish will hunt crustaceans, sea urchins and worms in an aquarium, very effectively.

This species needs a very large aquarium when fully grown.

Exactly how big the aquarium should be is hard to say, but the size of this species is such, that it cannot normally be kept in a home aquarium.

This species must be fed with an appropriately varied diet.

This species needs a minimum of 2 inch (5 cm) of sand in the aquarium bottom, so it can dig itself down when afraid or needing to sleep.

This species will better acclimatize to the aquarium`s condition if introduced, when young.

Very small individuals can be very delicate.

This species has a habit of rearranging rocks and sand.

Make sure rocks are placed securely on the substrate, so they cannot toppled over.

These fish may well hide themselves for a while, whilst getting acclimatized.

Do not disturb the fish while acclimating because it will prolong the process.

This species revels in swimming and requires an aquarium with ample space.

This species can change gender from female to male.

When a male is needed, a female changes sex and takes on the role.

This species can be used to combat Pyramid snails.

One can of course be unlucky in having an individual that refuses to eat them.