Is the dirt/bottom of the forage pond the same as the big pond? If so then the water productivity should be similar. Likely the big pond is having the plankton converted to fish biomass as noted by jpsdad.


I would try the TFS and see the results. You could do a jar test on the plankton next spring from the big pond and see what the plankton does w/o grazers. Put the water in a bucket (like the pond) and leave outside and monitor results.

Last edited by ewest; 12/17/18 03:32 PM.