I used Sunleaves guano, and about 50% super soil in the #7 pots (about 6.2 actual gallons).
Also, can't remember whether I mentioned it, but I have been adding 1 tsp of GO CaMg+ per gallon just about every watering. My tap water is really low tds, about 30 ppm, I think. I don't ever check or adjust pH or ppm.
Last watering, I gave them a fungal AACT brewed with worm castings, Alaskan humus, fish hydrolysate, humic acid, a dash of kelp meal, and a little pour of EJ Catalyst. They seemed tto enjoy it.