There were two species of crayfish “red-claw” (Cherax quadricarinatus) and “blue-huna” (Cherax albertisii) for their aquaculture potential. Crayfish were susceptible to fungal (crawfish plague), ...

Avoid mussels and clams, which are hard to feed and could decompose in the tank, and steer well clear of any crayfish you spot. There's only one legal crayfish in the UK - the Red-claw, Cherax ...

If you’re living in England or Wales there is one species of Crayfish you are allowed to keep for ornamental reasons— the Australian redclaw, sometimes called the Blue lobster, Cherax quadricarinatus.