It prefers a strong current and will require a large aquarium with large amounts of rock work where it can hide and scavenge for detritus. It will also eat algae. When large, it can become aggressive and catch and eat small invertebrates and fish.
If insufficient algae is present, its diet may need to be supplemented with dried seaweed. Meaty items should also be offered.
Approximate Purchase Size: 1 " to 2 1/2"