Autumn Indoor 22´

All the plants are turning yellow color. I know that is a classical color change during the end of the flowering process. But this time, with 5 different strains I suspect a problem. Lot of options: too much light duration (24h/24 light this week to compensate for the delay in the previous week= mistake) Wrong ph ( I had to change my defaulting phmeter this week) Nitrogen deficiency ( not enough nutrients in the soil for the last weeks…??) Too much watering No lethal risk, but a nutrients blockage could be a problem . The Sweet Seeds strains develop very dense flowers, the Gorillas are supersmelly and the Blue Hell look very interesting. Most advanced plants are the 2 Mohan Ram with rusty pistils. May be 2 weeks more before harvest. I will start flushing.