Mimosa Cookies - Vegan

The back-right one looks a bit burned. The light is running at 50%

The bigger plant seems to be experiencing some stress; the edges of its leaves are curling upwards, and the leaves themselves appear thin. I've now raised the LED significantly higher to prevent potential light stress. The other plants are growing more slowly and have reddish stems, but overall, they look healthy. I'll let the pots dry out properly, adjust the water to the correct pH, and add CalMag along with some seaweed extract nutrients. These small 3-liter pots have made it easy to accidentally overwater. To manage humidity effectively, I've hung a warm, wet towel in the room and set the ventilation to activate once humidity reaches 80%. This method is working exceptionally well. Additionally, the plants always receive slightly warm water, keeping the soil consistently warm. The roots of all the plants have already reached the bottom of their pots.

Even the healthiest plant is starting to show signs of stress now. Her lowest leaves are turning pale and look much worse than they did in the previous pictures. I'm struggling to identify exactly what's causing the issue, as they seem to have everything they need. The water is properly pH-adjusted, includes CalMag supplementation, and the runoff pH is also within the optimal range. I'm keeping a close eye on this and hope to pinpoint the issue soon.