Join Date: Apr 2007
Location: HI, but Pueblo, CO for now
K is potassium.
The third pic with the anubias definately is gsa. The black spots look like dead gsa or maybe even some bba. Gsa grows with a deficiency in phosphates. I could be wrong but the sword looks like a nitrogen deficiency.
Do you know what levels your ferts are when you dose? It doesn't sound like your fert levels are up to ei levels.