On Mon, 19 Mar 2007 06:37:22 CST, Anthony Campbell
wrote:

One or two may be dormant but most have just disappeared, including the
Elodea which always used to proliferate wildly. Checking the pH is a
good idea; I'll do that.

Don't pull them out too soon, they may come back. I know a lot of
arrowheads & Sagittarius are like that, slow to return. You also may have
some small but alive elodea in the pots. ~ jan
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Zone 7a, SE Washington State