Jps, I'll do some research on the Hyalella Azteca and PK shrimp and look forward to getting some. What I know about the PK shrimp tells me that they need some good hiding areas (the right habitat). I don't think my pond is conducive for them just yet...next to no shallows and what shallows are their are practically void of micro structure. Just the same, I will do more reading and work towards creating the right habitat.
Thanks for your advise, truly appreciated!
