Hi,
As part of my effort to save my Amazon swords, I think my tank lacks some
Nitrogen and Potassium.
After a short visit to the plant nursery I finally selected Jobes Spikes and
some liquid fertilizer - Yes for home plants!
The Spikes made of:
N - 6%
P2O5 - 2% (trying to keep phosphate as low as I can, not that I have any
Algae problems...)
Potassium 3%
And Iron 1% (EDTA) Which I doubt will have any effect, Since it is not
chelated

The liquid is made of:
NPK all 7%
I still need to look for KNO3 and other 'hydroponics' related compounds.
Does anyone have any good experience with NPK home compounds ???
10x

Amit