13" ?
Seriously, where do you people get this type of WRONG information?
Species: Odontodactylus scyllarus
Common name: Peacock Mantis, Painted Mantis, Harlequin Mantis
Functional type: Smasher
Range: Indo-Pacific from Guam to East Africa
Habitat: Sandy, gravelly or shelly bottoms often near reefs
Depth: 340 m, usually 1030 m
Home: Simple u-shaped burrow constructed from gravel, shell, LR
Diet: Generalist; gastropods, crustaceans, bivalves
Size: 318 cm (THAT'S 7" MAX)
Color: Olive or green, orange antennal scales, uropods with red setae, red raptorial appendages
Distinguishing Characters: Leopard spots on anterior lateral carapace
Activity: Active both day and night
Aquarium Requirements: Temperature: 2228° C
Salinity: 3336 PSU
Cohabitants: Most aquarium animals are not safe with large O. scyllarus
Aquarium size (adult): 100 l
Aquarium substrate: Sand and gravel, LR
Suitability for Aquarium: Excellent; large adults prone to develop shell disease; active and interactive
Availability: Commonly available from wholesalers and retailers