So say if I have a uncirulated US copper penny and I put it in the tank will it kill the snails? Will it harm my fish?
No it won't harm your snails or your fish. The copper needs to be dissolved in the water. an outstanding thank you to get rid is an particularly modest dose of CopperSafe or Aquari-sol. the two are Ich drugs. it could take 2 or 3 a million/4 doses, even though it incredibly is going to ultimately kill your snails. i does not even think of roughly draining the tank.
Yes, copper will kill snails. No, pennies will not. Pennies made after 1943 contain a fair bit of steel, and far less copper than you'd think (as steel is cheaper). I have tried this method and all I can say is that it's worthless. If you want to kill snails, try ionic copper (Coppersafe, Aquarisol, Cupramine, Organicure).
