That's awesome. I would recommend sand or a finer gravel for their 40 gallon.
i got the natural looking finer gravel in the 40g..dude shes more buried now then that picture shows..i know my crayfish move around alot at night so i'ma go out there tonight and see if momma shows herself lol..idk they seem to love night time for then day time..
Night time movement is normal. They are kinda nocturnal I think. Mine move around all the time though.
I can even hand feed mine.
If you don't have a male for the red claw, the eggs won't get fertilized and they won't hatch.
Marmokrebs are the ONLY crayfish that don't need a male to hatch babies.
That's good then![]()