Hi;-
  New question: I've heard a good bit about leaving shells out to be
cleaned by ants. Sounds both good an thorough. BUT---are there some
areas where ants are better cleaners than others? Are there some
times of the year when ants clean better than other times? Are there
some species of ants that do a better job of cleaning than other ants?
 Does dropping a bit of other food in the shell mouth help attract
ants?
    QM