I have not found the red claw to be all that hardy.
I put them into 1litre soda bottles that I melted several holes into for water circulation, each bottle is set up on a stringer with 8 to a stringer and I fill each one weekly with grass and some meat scraps of some sort or another.
They are temperature sensitive and I lost quite a few before I finally dropped the water level in my tub pond to around 100 gallons to make it easier to keep warm enough.
I probally lost 40 or more while fighting temperatures before I gave up and dropped the water level.
Since I paid $4 ea that was an expensive lesson....

I am still hoping that these will grow and reproduce, but I am concerned that I may have all males left, only time will tell for sure.

I tried to put 5 or so into baskets with pieces of pvc pipe to hide in but after a few months I only had 1 in one basket and 2 in another... so much for getting along!

this is an experiment in progress so only time will tell...