Could use a hand

These are my two GG#4 autos this is my first grow i use ffof soil and their trio brand I’ve only had problems with the one that looks like it has phosphorus deficiency but now my other one’s acting up last feeding i poured a gallon of tap with 4 ml organic big bloom and 5 ml of tiger bloom with half a ml of calmag the ppm is about 450 runoff is usually around 1200 i also use two 1200w aglex lights the temp stays 75/80 humidity is 50% its 18 inch away from light ph goes in around 6.2 comes out like 6 please help
 

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