I HAVE A POND THAT COVERS ABOUT 1/2 ACER. WE HAVE SOME TROUT STOCKED IN IT THAT I FEED REGULARLY. THEY HAVE GOTTEN QUITE LARGE. MY QUESTION HAS TO DO WITH THE (WAY TOO MANY) SUNFISH THAT ARE ALSO IN THE POND. THE TROUT DO NOT SEEM TO CONTROL THEM BY EATING THE SMALL ONES. COULD I INTRODUCE ANOTHER KIND OF FISH THAT WOULD CONTROL THE SUNFISH BETTER?

I ALSO HAVE A HEAVY VEGITATION GROWING FROM THE BOTTOM OF THE POND NEAR THE SHORE. I HAVE 5 GRASS EATING CARP IN THE POND AND THEY DO A GOOD JOB ON OTHER GRASSES, BUT NOT ON THIS. ANY IDEAS ON HOW TO CONTROL THAT?

Sharks and dolphins?

Here's a couple of ideas...
Feed your trout fewer times each week, give them motive to eat your sunfish.
Regarding the plant, we need to identify it. Grass carp eat certain species, others it won't, or can't, touch.