What is MGOCPS?Additive Layer: First off, I will be putting down some nutrients on the glass. I've settled on adding a dusting of organic peat moss, potassium chloride (muriate of potash), and dolomite.
Dirt Layer: For this layer, I'm going to be using MGOCPS
which is best as a high-CEC material dirt?
I use Scott's Hyponex Potting soil. Here my next substrate, Co2 generating sub.
If your ph is high you don't want to use dolomite for it will increase the ph.
Laterite CEC is much less than for clay or humus.
Soilmaster : 19 Will lower the ph number.
Turface: 29 to 41 Turface red is 29, black is 41.
Red Bag Kitty litter has a high CEC
More info on CEC here