Both are the same soil and feeding schedule, same seed package as well. Organic soil with some amendments and using biobizz bio grow, bio bloom and top max. I had a little bit of nutrient burn when going over 1ml/L and heat damage.
The one on the front/left is yellowing as a whole and the other is not.
Any idea what why? Instead of 1,5ml on 1,5L of water of Biobizz Grow, I used 2ml on 1,5L last two watering, waiting to see some result.