Only time will tell... For now, Zimmerman is filling a small niche market. Ideally, you would purchase a small number of the LCS, say 20-25 and stock them when you stocked the FHM into your pond. Give them a jump start on the predators. Then allow those original stockers be your brood fish for the future. Adding LCS in low numbers at that cost into an already established pond would be a waste of money.