Drunken Glory of ‘22

I've yet to c any toc or def but I've seen my fair of nutrient/fert burns. But that, is just a stain from whatever you are using. Anything acid like a PH adjuster or whatever nutrient you dropped on your plant and didn't dry it off the light just burns it. They are clear drops. Toxs and defs don't form in that type of uniformed way. To me its a droplet pattern. Your plant is looking a lil pale though. Bit of extra food in her diet will get rid of that. Good luck.

your night temps are a little cold and thats new growth so mostly they came in lacking chlorophyll and yellowish but yours are coming in purple and rich in anthocyanin triggered by cool nights probably. give it a couple of days.

It's the very 1. Phosphorus usually causes purple sometimes. But it's not that. Nothing to do with nutrients. It's fade. Some plants have anthocyanins. And for some reason you are seeing a mutated form of that. Its just fade. It's caused by a drop in temp. Some ppl can get it in spades some can only get plane Jane green leafs. What you got is a mutated bit of fade is all. That's all. Your plant is healthy. Its fine. Happy growing.