CJ, The trout grow very well and so do the PS's, each time I put trout in this past year they would eat the trout feed vigorously for a day or two, then not as much, they seem to prefer all the minnows, frogs, and insects.

The trout growth rates averaged 1 to 1 1/2 inches per month and I believe that the 2 floating Islands that are on the pond really help increase the natural food available.
In addition to putting in a small aerator on a soaker hose, I put in 1 pound of "Flush It" powdered bacteria which seems to have a very high bacteria count to dollar ratio.
Tiger trout are available in PA., and I would highly recommend them, they are very aggressive and easy to catch.

What area of PA. are your 50 acres?