From a fellow grower-having issues with wedding cake auto plants. No further information given.
They look like they want more light to me.
It would be helpful if the issues the grower sees were to be pointed out. The main issue I see is that current lighting is inadequate.
The tip burning is due to excess nitrogen in the soil.
Dark green leaves with a waxy sheen also an indication of excess nitrogen. Autos are finicky about nutrients. Start them off with a quarter dose of directed dose and see how she responds and adjust accordingly.