Yes, I had GH=8, but still Ca deficiency, it is relative to other elements, like Mg. It got better after I added CaCl2 to bring GH to 13.Simpte 27 said:Is it possible to have a Ca defficiency with a gh of 6-8?
Unfortunately, my Ca kit is useless, I only measure GH. I simply add Ca and observe plants.NE said:Do you have any records of what amount of Ca and Mg you had before the change and what you have after your change?