I have noticed the past two winters that the ice on my pond is greenish tinted. My water has never been clearer than 10-12 inches. It is half acre, solid clay pond, five years old. Fish are doing well,(LMB,BG,CC) not sure if I should mess with it. Anyone out there have the same situation?

half-acre pond, LMB, HBG, BG, GSH and CC ....goal is to
have fun fishing. And I subscribe!