Hi. First time growing. Checking for some guidance.
Pot size is 2.5 liters, growing in a mix of 25% coco noir, 20% pumice stone, 15% earthworm humus and 40% brown peat. Both, with a 50W led light for 10 to 12 hours indoors in an open room and 6 to 8 hours of sunlight. Total 18 hours per day.
The first one has 25 days since it popped out of the soil (unknown seed), slow growing, few brown spots on the leaves and cotyledons are yellow and falling. Has 5 nodes now, but the top ones are curling up and going down, 5 days ago. Watering every 5 to 6 days around 450ml, just water, no nutrients.
The other one is a Gigabud feminized seed, 11 days since it popped out. Leaves curling up and a few spots on the leaves. First normal watering 3 days ago, around 450ml. Same than the other one, just water, no nutrients.
Nutrient deficiency or something else?
I appreciate the help in advance.