If you want to swim in your pond, you do not want BG/HBG swimming in your pond. Others will disagree with me on this, but in my experience they are savage little nippers.
In my pond, most days, it helps to throw a quart of Optimal pellets before we jump in. Yesterday it didn't help.
Within 15 minutes of getting in I was bleeding in several places. Had to put a t-shirt on to protect myself from the little monsters.
