Unfortunately, your diary doesn't show the EC value of your nutrient solution. I assume you haven't fertilized your Plagron AllMix yet.
My tip:
- Adjust pH to 6.3-6.5 and observe the development, as a constant pH of 6.0 can cause problems with the uptake of Ca | Mg | P and possibly.
- Give CalMag at 50% of the recommended dosage once a week and continue to observe how it develops.