Hey Creeper. Mixing two mediums doesn't increase the CEC. The CEC will be the average of the 2 mediums. At least until microbes do their job breaking down stuff increasing the overall CEC. And I'm not sure what hydro effect means, but I like reading your posts so don't take this the wrong way. Just thought of a few things looking at a bit of this thread that might help.Using the two potting mixes together will boost the C.E.C. “Cation Exchange Capacity” and should give me the hydro effect. When I say the hydro effect I'm only using a small ppm or low EC and getting big results because of the CEC boost. My nutrient fertilizer is only 110 ppm and mixed with cal mag is around 300 ppm total. When the plants go into their final pot I use the final light.
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