How do PK Shrimp overwinter? I just ordered 100 for my pond that has plenty of vegetation 9 months of year but all the pond weed dies back during coldest months of the winter (I am in northern VA). I don't have predators now but will add SMB next spring. Hoping PK Shrimp can be a permanent and sustainable part of food chain. Do I need to add brush to help with winter survivals?
