Clawing and Brown Edges

PH was at 9.5 and caused a cascade of issues. Sitting in Fox Farm also didn't help.

You have nitrogen toxicity. Plus nute burn. Actually this is all signs of not enough run off when you add water. Your ph is likely way off as well. You need to flush this plant with 6.5 ph water. Which your run off should be 6.5. The stress is why it has not gone to flowering yet. It is literally cooking and dying in the soil with whatever your feeding it.

FFOF is usually to hot for seedlings. You have been suffering from nute burn from the start. Plants don't need food for the first couple of weeks. Every time you water it releases nutrient's. So having them in this soil from the start it has released nutrient's from the start which were not being eaten and building up.

that really looks like nute burn, and i look into the diary and your girls are dry as hell, too dry, and a low %rh, aim for 60% rh in veg, also spray some water to make the substrate moist, try foliar trichodermas. Remember you need to water your plants when they feel lightweight until you have a little run off like 100ml. In a healthy plant and healthy environment that is like watering every 3 days app. how much water do you give ? the rule its to irrigate with 30% of your pot size when the plant its fully grown, so go from 5-10% in the early stages of the plant to 30% when they fully grown. Hope this help you, happy growing, and keep it up, eventually you gonna make it buddy 👨‍🌾🏻

Clawing leaves result from three things: nitrogen toxicity, under-watering or over-watering (the state of being constantly wet). I personally think your soil was just too hot for these ladies, especially since they're autos. When I grow autos in soil, I grow in ProMixHP which has no nutes whatsoever ... that way I get to control what nutes they get, how much they get and when they get them... autos don't like nutes for the first couple of weeks at least. But your plant, in my opinion, is showing signs of a nitrogen toxicity which has now locked out calcium which is what you're seeing on the leaves. And before you reach for the bottle of calmag, let me tell you that won't do a thing to help her. If it's a lockout, you could give her the whole bloody bottle and she still would not be able to get at the calcium... so you're going to have to flush... run 3x the pot volume of pH'd water through each... after you let her dry out, start giving her bloom nutes which she desperately needs right now. Lots of PK and stay away from high concentrations of any nitrogen... I don't see any nute information in your diary so I can't give you specifics. But she IS in bloom which is a good thing... it means you'll at least be able to get something from her for all your trouble! Good luck...