On Wed, 30 Jul 2003 08:59:11 -0400, "BenignVanilla"
wrote:
I was told by
one that it was difficult to get because it is the prime ingredient in bombs
used to blow up buildings in Oklahoma. I don't know if that is true

Not true ... IIRC Ammonium Nitrate is the chemical they used
while also a fertilizer it is not related to potash...


(no) potash in hand, and my plants are yellowing.

FWIW potash encourages growth .. more and bigger leaves/longer
stems and roots. If your plants are yellowing you need to
encourage photosyntheses ... to do this you are looking at adding

Nitrogen
Iron
Magnesium
Sulphur

Since adding Nitrogen can cause an algae bloom I prefer to start
by adding epsom salts (Magnesium Sulphate) at 1 tsp/1000 gallons
then chealated Iron 7% at 1/2 tsp /1000

If this does not help and it looks like I need to add nitrogen I
remove plants and start feeding the fish more they can supply the
nitrogen.