Five days later and all of the worms are completely ...
Five days later and all of the worms are completely dead.  Did not harm any of the other stuff in my tank.  However, I notice that the eggs my frogs lay are no longer fertile and all fail.  I wonder if this medicine can harm frog eggs?  It's a bonus for me as I don't really want any more frog eggs hatching, darn it.
Rating: 5 stars