So I had stopped dosing everything except co2 out of frustration and what you're seeing is what happened. Holes came back and lower leaves died within a week. Before, I had to dose 4-5x phosphate and potassium to get the tank to bubble...
That doesn't sound right to me, because we are talking about a loaded substrate directly available to the plants. If it makes you feel any better about EI in my new setup (see link in sig) I also have a ton of Seiryu stone and very little plant mass and dosing normal EI levels using NPK and Seachem Flourish Comp. I have a Finnex 24/7 CC light that provides just 3 hours of max light and my plants are all clean even the slow growing Anubias and Ferns.
Indeed and thanks for the reminder - I didn't dose anything but micros the first three month and the tank was doing awesome. Then, what I assume happened is that the fertilizers ran out in the aquasoil. That's when I started having problems and also began attempting EI. This tank has been up for about 7 or 8 months now.
Also, its degassed ph is actually 7.5, and it drops to 6.6 with co2 on. Just checked.