Please provide the research showing they aren't an invasive foreign species. We know you wouldn't endanger any native species, like the poor old topwater minnow.
Read my above mentioned link Theo... I have already touched the topic but I appreciate your concern for any affect a non native like the Asiatic clam may have on natives. However, the pond I placed the clams is in a watershed where Asiatic clams have been well established for many years. So there is no affect.
