@OGpapa you said you used Happy Frog all the way to harvest, right? I'll take a look through your journals, but can you tell me if you use calmag and how often? I actually thought HF was a soil that didn't need it, but I must be wrong.
Yes I only use happy frog. From germ to chop. I do recycle the soil also. I slightly perk the soil each run 50% fresh happy frog 50% used soil with dynomyco perlite and geoflora. I am a firm believer of dynomyco. But it will not save a Bad plant. I had mad issues with Papa Bear that I just harvested. He was stunted and well behind his siblings.
I do use botanicare calmag plus. As labeled on the bottle. I do use well water. I have not had an official test done. I know I have some calcium and lime deposit.
You have seen me push high ph water in my plants. I am now also a believer of 6.3ph. The plants can't absorb needed nutrients if your pH is high or low.
I also added tps nitrogen lately. For a boost. The Geo Flora is on a schedule I didn't want to interrupt. Looks like your plants are lacking nitrogen also.
Next run I will make several tweak's