Cambarellus Dimintus Dwarf Blue Crayfish.
I've got some dwarf crays up for sale or trade for CRS/CBS, Snow White, OEBT, Tibees.
These were sourced by someone who has apparently gotten them as blue as electric blue crays. But he's selling them for 20 each. I'm only asking for 15 each. If you buy 4 I'll throw in an extra for free. You will be getting juvies. I will try to offer both sexes at no additional cost. However, I cannot guarantee the outcome because it is still hard to sex them at a young age.
They are very docile and could be kept with shrimp as long as they are properly fed and have hiding spots. They are the smallest breed of crays at 2.5cm and are pretty hardy. I've noticed they can be kept in any type of water.
*apparently they are more blue in soft water conditions*
I keep them at 6.5 PH, 5 GH, and 180 TDS. However they can be kept in harder water.
One of my mothers.