Re: earthworm castings

Anne Seales wrote, Oct. 27:

>.......Their worm castings are available in 1/2 cubic foot size @$9.95, and 1cf
>@$15.95.  Shipping is steep as this stuff is heavy - add $5 per 1/2cf bag,
>and $10 per 1cf bag.  .......

Before you shell out all those $$ for earthworm castings, are you sure that
there is anything special or magical about earthworm castings?  What is in
earthworm castings that isn't in ordinary topsoil that would befefit
aquatic plants?  Please, whoever sets up some plants with earthworm
castings, do an experiment for us.  Set up one tray with castings and
another with ordinary topsoil, and plant the same kind of plants in both
trays.  Let us know if there is a noticeable difference in growth between
the two trays.

Paul Krombholz                  Tougaloo College, Tougaloo, MS  39174