Augie,
Can you tell us anything about water quality, ph, hardness, alkalinity etc? Did you ever get a basic pool water quality kit and test?

I have tried to stock crayfish and they don't show up in traps. I caught some on the edges looking like they were trying to flee by land!! I wonder if they want a certain water ph/hardness/calcium content to thrive.

I bought 2 shipments of shrimp from the ebay dude, the first one got lost in transit during COVID and arrived with most dead. The seller very nicely agreed to replace once weather and COVID cooperated. I put that batch in later in the fall and still no real survival that I can see.

I have a lot more FA that they can hide in so I might try one more shipment but would be happy to pay you or some other pond boss meister who may have scads of them and be willing to help