Dying leaf troubleshooting.

Hello From my grows more often than not the lowest first "true" leaves(single fingered leaf) typically discolor and die off . This may be from water or things getting splashed on them being so low, or they're in the complete shade and usually the plant eats them and bye bye. Keep a healthy and consistent environment and things typically will go smoothly. Your photos turned out beautifully this week, but the leaves do seem pretty deep and dark which can be an indication of high nitrogen. Maybe consider bringing the biogrow down to 1. Most of the other biobizz products are there to free up nutrients and make them more available, so usually your plants would be able to absorb 1ml as effectively as poor roots could absorb 2ml. Know what i mean? Either way the grows looking nice. Happy vegging.✌️

single-bladed serrated leaf, no big deal. keep eye on total plant, but looks okay otherwise... difficult to comment on color in pics and wide variety of what's possible. you know your feeding habits, so take that into consideration pH, concentrations and ratios of elements all impact how the plant has access to each. elements will compete with each other in some cases. If all these things are correct, then we can have confidence in what we deduce from leaf symptoms. Most of the time people need to dial back and they merely throw kerosene on a fire. I read you noticed growth slowed after transplant -- possibly shock, but also it'll concentrate more so on roots while they reach down and hit the bottom before it vigorously grows again. I keep my donors in 1-gal pots filled about half way. They never get taller than 14" or so.. maybe 18" at most.