Based on everything I've read if you have a decent predator population they aren't likely to do anything other than provide more forage - they can get big enough to be beyond the gape of anything but the largest LMB we can grow (I'm about the same latitude as you) but it's not likely to get very many to grow that large...unless you have a TON of cover the LMB will do a good job of controlling them.

I've stocked GSH in my large pond 5 times now (fry, 250k to 500k each time) and I've rarely even seen any, much less caught one.


Dale

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"When tempted to fight fire with fire, remember that the Fire Department usually uses water." - anonymous