Out in BC where my Mom is now retired there was a lake that had some of the biggest average brown trout anywhere around. You could catch big brown trout with ease for years. The ministry got in there an banded house boats on the lake. The sanitary poopers were being dumped right into the lake. Guess what happened to the fishing after they stopped the dumping?

Yep the lake slipped in to a supper clear lake and in a few years all the feed was licked up by all the good size brown trout. It stunted the fish in the lake from over eating after three years.

Long story long some times super clear water is not the best for a fishery.

Cheers Don.

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7/8th of an acre, Perch only pond, Ontario, Canada.