I have had 5 in something under an acre for 6 years now. There is a little potamotagon (sic) pond weed and arrowhead next to the shoreline (shallower parts), and that is it for plants.

FWIW, they run 3' - 3 1/2' long, and weigh in excess of 40 pounds.

"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
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