Ok here is another positive note on GC. I have a 1 acre pond only but I have put 5 GC in my pond in 2010. I have American pond weed and chara. I was told to put 12 in there I was like noooo way! There easy to add hard to take away! So I didn't want all my weeds gone just wanted some control of them. Well it's worked for me. I think who ever put the GC in your lake put way to many of them. They should a have started out with like 100 of them and waited to see what happened.
It's the whole pendulum thing. Yours is way to far one way so you want to correct and get it back in the middle and you end up swinging all the way to the other side! Now your in trouble again! It's easy to do and frustrating. I have learned in my short time SMALL changes can have BIG effects on your BOW! I learned this the hard way myself.
RC
