Hi guys,please help me,I transplanted small plants into a mix of 30%lightmix and 70%coco and this appeared on two plants.I water carefuly, Ph 6.5.thank you for your advice
Looks like they were exposed to dry air or wind sort of. Those little girls have no roots yet so watering is going to have to be applied very lightly. Your soil looks pretty wet for how small a seedling it is.