New set of leaves growing only half.

I can tell by the pattern of wetness that you need to amend your irrigation practices. This could be related to leaf symptoms present. pH - slighty acidic ~6.8 Ensure entirity of substrate is saturated. Some runoff will be needed whether irrigating or fertilizing. Wait for pot to feel light and top 1" to be dry before repeating. As you approach full strength nutes late in the grow you'll want a bit more runoff when you fertilize to promote a proper distribution of nutrients within the substrate. Throw out the runoff or toss it outside on lawn or garden. The wet-dry cycle promotes numerous benefits. Stick to it in a religious way. Early on it is very low-maintenance. As long as pot isn't too small, you'll have at least a few days between late in bloom. As long as you see no mildew or other growth, the rare spike or 2 of humidity should be fine. Early in vege, no problems if no microbial growth. If you control temp and humidity, refer to a VPD chart to guide through each phase. vapor pressure deficit