Thin, twisted new growth

probably overfeeding slightly... thin blade with contortion is a sign of zinc deficiency, but this would be rare under normal circumstances. verify pH is in safe range.. if so, maybe dial back slighty? tip burn and claw indicates the concentration of nutes is a bit high, which could also cause other false-positive deficiency symptoms related to lockout. I'd start with a 5-10% reduction and see what happens. it's good to calculate what you feed in PPMs. it is more intuitive and you don't have to do any math in your head about weighted balances and consider the dosage to guesstimate what you are providing of each necessary molecule. It would eliminate the guesswork and the maybes for most issues (more for a soilless or hydro context). Even in a soil grow this is useful. you just have to consider what is in teh soil to start, how quickly it depletes etc to determine what to provide over time... a balancing act that just takes some time to work out. but, knowing the ppm will hasten that learning curve.. autos may need 10% less than photos, but a 650-750ppm feed is about all you need even when the soil is fully depleted. use chealted and readily available nutes as if it were a soilless grow, imho. anything that doesn't come with a guarnanteed analysis label is suspect and likely prone to volatility that will easily cause problems in a garden and be difficult to deduce exactly what it is and what caused it.