Looks like Mg deficiency.
. First, adjust pH
Allow pH to rise a bit to allow better Mg uptake; 6.5 pH hould do. At this mark, all other elements will still be optimally uptaken.
. Evaluate for 5-7 days. You're halfway through flowering Lemon Haze, so you have time.
. Mg additive
If unresolved after 5-7 days @ 6.5 pH, consider adding Cutting Edge's Mag Amp or any other Mg-only additive.
Hazes and haze-derived hybrids are finicky--they tend to favor a conservative TDS/EC but start crying the minute there's too little of anything. Adjust base nutrient to allow incorporating a Mg additive.
"Argument is sugar, and the rest of us are flies"
-Richard Wald