I started them in a large pot and mixed a seedling soil (composed of coconut coir, vermiculite, and something else) with an organic potting soil (composed of bat guano, worm castings, bark, and who knows what else). I have been watering with spring water and I have not tested the ph of soil nor water. I also just switched my light from a small LED to a larger 1000w COB LED. In the last couple days the leaves developed some small brown/yellow spots and now the whole leaves are turning yellow. Any suggestions?
these pics are under different lighting, but are taken at the same time