Bobad, it appears they do spawn once per year. I would say the biggest advantage over goldfish is they do not disturb the bottom substrate with a rooting behavior like goldfish or carp do. LCS actually prefer non turbid water so they would not do something to affect water clarity. There is no risk of over population as well. Biologists have never found a pond or lake where they over populated in them. They also have been proven in scientific studies to maintain viable populations under LMB predation. Goldfish are usually extirpated from a pond rather quickly after the introduction of LMB. Plus they are native...