get a blue maron lobster

but there a lil mean. heres some info:
Common Name: Blue Marron
Latin Name: cherax tenuimanus
Origin: origionally from Western Australia
Temperature: 15-22°C (59-72°F)
Ease Of Keeping: Medium
Aggressivness: highly agressive towards slow moving fish
Lighting: Primarily nocturnal, will come out in low to medium lighting.
Adult Size: up to 30 cm, 1 foot
Minimum Tank Size: 20 gal is fine intill 8 inches, then a larger tank (55 gal) is needed
Feeding: Omnivorous, yabby pellets, small amounts of meat, plant material, carrot, cucumber.
Spawning Method: sexual reproduction.
Ph of 7.2-8.5
dH 8-20