Apple fritter (strng seeds)

Hi! The humidity is fine, you should however ger in down in the next week. Get yourself a VPD chart and you know what to aim for. The odd leaf structure is a disposition of the phenotype and nothing to worry about. The new growth will be fine, so give it time!

If the temperature is not stable your heater is too small, your lung room is too unstable. One option would be insulating of your box, but could screw you up when the lights turn on ;-). Another option (if your lung room is dry) would be more inlet. Nonetheless, I would try it without the heater and compare. As you can see in your measurement, your RH and temperature are directly linked. So your humidity is most likely caused by temperature. It seems like your heater needs to long to heat up your lung room. So put it in there and turn it on before the lights turn out.. or something else. If your temperature does not drop too low without heater and you got no mold problem ; I would turn it off. Just as reminder the positioning of your sensor and airflow in your box are also crucial.

i see no Reason to trim anything here. just remember, the leaves are the motor of the Plant they are pumpig the juices into all parts of the leaf. here is no reason to take away anything

This isn't light damage, so get that back where it was. maintaining DLI is important. nutrient related but more than one thing can cause what you see. "tea" is more about maintinaing microbes, eh? Probably doesn't have much nutrients in it? would need more info there (rhetorical, you can apply some deductive reasoing here and adjust foro what is said below) if it doesn't progress much, it's less of a concern, but if it continues to go downhill you have to adjust the balance of your fertilization, and hopefully it's not the contents of the soil (like amendments that slowly release, because those aren't going anywhere without a stressful flush, which should be avoided as best possible). since you are not fertilizing much, this is about the long-term effects of your soil constitution. You can't do anything about that until the next batch of soil you mix up. Based on description i'd lean toward deficiency before toxicity -- deep into grow and minimally fertilizng, so if it was a toxicity caused by pre-amended soil it would have showed up much sooner. since it's about something you can't really measure midstream, i'd wait for more clear symptoms to confidently diagnose the issue. If it stays limited and doesn't progress, i wouldn't worry too much about it... if you have a guesstimate, be very conservative in your adjustment.. doing the wrong thing potentially makes it worse. put your toe in to test the water and if it works you have a better idea of how to adjust your soil constitution next time.