jpsdad has good advice for harvest of the YOY. Knowing the alk, NO3 and PO4 will help with knowing and monitoring the natural or added fertility to help determine the productivity and how much could or should be harvested. It could vary noticably year to year - depending. Secchi disk or equivalent can help monitor existing fertility and ultimately an idea of annual YOY production. Keeping some applicable records of inputs to the pond, weekly secchi readings, and harvested numbers, sizes and pounds will be very helpful in future year's management.
Last edited by Bill Cody; 05/29/25 03:08 PM.