Did the mineralized soil process about two months ago (thanks Aaron!) and my plants are doing better than ever! The only odd thing I've noticed is if I push on the soil, I get a few bubbles that come out of the substrate cap. Is that normal? All water parameters are good, fish are doing great, plants are growing really fast with great color.
I just looked at my CQ that can be seen through the side of the tank that I used to cap the mineralized topsoil. Lots and lots of bubbles have formed in it against the glass. With every poke of the CQ, many bubbles are released.