On 13 Oct 2004 19:02:35 -0700, (Dances With
Ferrets) wrote:

Heya folks... anyone got any ideas for cheap sources of bioavailable
potassium for a heavily-planted 50-gallon tank, along with approximate
recommended doseage? Someone told me potassium permanganate, but I
have serious doubts about this.

Cigarette ashes contain potash.