Potassium can also be dosed in the form of "NO SALT".
Or, Potassium Nitrate aka Salt Petre...


"Djay" wrote in message
...

"-=Almazick=-" wrote in message
. net...
I use Flourish Seachem and Plant Gro (Iron Enriched) and just realized
that
they don't have any Potassium. I get yellow pinholes in older and slow
growing leaves. Where can I buy Potassium for my tank? Local fresh
plants
store or PetCO?



I bought a 40# bag of KCL water softener pellets for $8.25. That will
take
an army of plant keepers 10 years to deplete!

DJay