Every pond is unique. Personally, I love reading about other people's experiments. Even when it didn't work, I usually learn at least one more tidbit of information.
Good luck on your most recent experiment. It is OK if a few GSH escape your net, but not good if some predators manage to break in. Maybe fish for predators in your "safe zone" sometimes when you are at the pond to make sure they are NOT in there? Then you can determine if you have a reproduction problem or a predator problem stopping your establishment of GSH.
