We do not fertilize and have a continual run out of water despite the drought conditions. The pond is fed from a natural spring about 1/2 mile upstream. I guess I can attempt to catch them with a light and a cast net or seine net if they start to take over. Deer hunting a couple of weeks ago, I watched an Otter upstream. Perhaps the Otter will consume the Gshad instead of my game fish since they're probably easier to catch (?)
