Most species can grow to around 10 centimetres (3.9 in) in length, though a few species reach up to 38 cm (15 in). The largest ever caught has a length of 46 cm (18 in) in the Indian River near Fort Pierce, Florida of USA. They sport powerful claws that they use to attack and kill prey by spearing, stunning, or dismemberment. In captivity, some larger species are capable of breaking through aquarium glass with a single strike