nutrient toxicity

Please forgive my ignorance, this is my 1st try growing indoors, working with a clone and growing from seed. In this picture is a Purple Punch clone (from Clone Guy). I believe the issue is nutrient toxicity. Am I correct? I'm not sure exactly what the issue is with this *lil one. Any help...

Hey guys, thanks for reading! This is my first ever fully coco run. I'm using botanicare nutrients and FloraFlex lines. Two plants (of 6) left. One is showing what I think to be a really bad nitrogen toxicity, the leaf ends are very curled under and some are slightly burnt. The other plant is...

Hey so I just used cal mag at half dose 2 days ago for the second time at half dose and then all my plants started to wilt and get leaf tip browning they are based and have them in Fox farms happy frog soil the pics are crap but I'll add more if requested. Please help I already messed my babies...

Hi! My leaves look weird in color mainly the new ones the older leaves are a little dark and the tip of it is slighty white! Thx Coco/Indica fem/day 32/600w/temp and humidty is right

Is this over watering or a nutrient toxicity?