Dave,
Thanks for the info. The pond is 3/4 acre. The majority is 10' deep with a 30x30 "hole" to about 18'. There are benches and shelf structures at all depths with a broad flat along one side that is about 6-8' deep. Near the center is a small submerged island that will have about 6' of water over it. Once I get some artificial structure in place it should be good to go. It has water up to about 6' below outlet level, and we just got more snow. Now it is wait for the plankton I guess.
