"The Drunken Lord" wrote in message
...
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.

Morton's Potassium. It is Potassium Chloride. Its used in water softeners.
Local Sears store sells a 40lb bag for around $8 -- $10. Pure stuff.

Use a plastic container, drop several chips into it. Add some water. Let
it stand for a day of so. Most of the chips will dissolve. If they all
dissolve add more chips until they do not dissolve any more. You now have
the highest concentration of potassium in the water container.

I use 10ml per day in a 140gal tank.

Buzz