I live in a neighborhood and i just found out that the pond that i have been stocking seems to have 2 2' or 3' pipes. I am woundering if the LMB will swim through and go to other ponds?I thought it was just run off from the streets and the homes that live on this pond.The BG seem to still be there they are all over the place.Thanx for any help, i plan to put vinyl lattice infront of these pipes to fix this if its a problem.