Hi welcome onGD with your first grow-Diesel automatic from RQS. At the first look i see notheing that is concerning.Second look with reading i just would set the Light on 20/4 or 18/6..... I think all have earned a Rest , even Hempplants^^. But that only my opinion. And second, Your watering, is it really 1,5 l per 24 hours? sounds a lot, ive grown similar strains and just needed 500 ml per day. As soon as they stopped streching you can go on with blooming fertiliser and stop terra vega. conclusion:::: happy looking plants you can go on , just watching watering and start blooming fertiliser. and maybe giving them a " break" . Happy growing