On Tue, 16 Mar 2004 23:39:12 -0800, Sean Dinh
wrote:

Green water is easy to remove with Potash.

Potash is simply the third ingredient in fertilizer (plant food) and
the other two aren't as readily used without the third. Adding
potash to a pond with (N)nitrates and (P)phosphates without (K)potash
will allow the plants to absorb the nitrates and phosphates and
enhance plant growth.

Regards,

Hal