Mark C. Back to your weed issue. Make damn sure you know the correct name of the weed before treatment with chemicals or fish. It makes a big difference sometimes as to how much chemical or how many fish you need. Some chemicals such as Sonar are more sensitive to a certain specie of plant than others. Less chemical to do the same job is of course CHEAPER and more environmenally friendly.
I think PA allows amur, at least Zetts' in Drifting PA talked about using them, to his dissapointment. Expore and research them before resorting to chemicals. I've seen them clean up (eliminate) milfoil at 10-12 fish per acre in two situations. They will also eat coontail but not very well; so more are needed per acre. This complete clean up caused new pond problems. So complete eradication of the weeds is not wise. Once in, the fish are very hard to remove but many brag they can do it until they start the job; not so easy, even with a gun or net.
Helpful Hint - Read all the weed related posts.
