Glad to see that you got some
SLF-100. I really think that you are going to like the results. Plus it is going to really help out in the solo cup grow. The yellowing I'm seeing in your images is a Nitrogen deficiency. I would consider a using a supplement like this one for those two very hungry girls.
Soul Grow-N Quart
Item Details
NPK 8-0-0 + Ca 8%
Derived from:
Bat guano, Calcium Nitrate and Magnesium Nitrate
Soul Grow-N nitrogen supplement was specifically crafted for the gardener who demands faster growth from high-performance fertilizers. A deliberate blend of fast-acting and natural nitrogen and calcium sources engineered for maximum effect and high solubility. Grow-N puts the controlled application of these essential nutrients in your hands. For exceptional results, combine these highly soluble, fast-acting nutrients with any base nutrient program. Soul Grow-N nitrogen supplement was specifically crafted for the gardener who demands faster growth from high-performance fertilizers. A deliberate blend of fast-acting and natural nitrogen and calcium sources engineered for maximum effect and high solubility. Grow-N puts the controlled application of these essential nutrients in your hands. For exceptional results, combine these highly soluble, fast-acting nutrients with any base nutrient program.