Clawing on Lemon Cherry Cookies Fast Buds Biobizz light mix

Bright green new growth is not always a deficiency. e.g. too much p or k can cause that - thin blades with chlorosis is a symptom of too much p or k.. to discern between the two you'd want to refer to how much of each you have been providing. More than a couple excess nutes can cause clawing without burned tips, like N or Ca. Symptoms on leves are not discrete. It more often takes some cross referencing to eliminate possibilities and diagnose correctly. The instructions from fertilizer companies are often created to maximize the sale as opposed to maximizing your results. I find their ratios rarely follow existing knowledge and research. Many try to play mad scientist and use their own esoteric ratios of nutes, then you get fewer plants happy with it and that fules the idea that these plants want drastically different things and most of them do not. i don't know if that is soil or soilless. it's coco with a bunch of slow release organic nutrients ... so it's virtually impossible to know what levels of each nutrient are potentially causing the issue. your guess is as good as someone else's. trial and error is all you have. make an educated guess, adjust the formula and observe for the next 7-14 days how it reacts... over time you'll hone a good formula. You can cut this learning curve down by paying more attention to the ratio and concentration of what you are feeding to make educated adjustments. Sometimes a buildup or deficiency can take weeks even a month or more to display symptoms on the leaves... the cumulative effect over time is what usually screws with people because they tend to think the cause is the most recent event.

The clawing could be from overwatering. Excess nutrients would normally burn the tips of the leaves.