I have a white widow big bud plant that is having a problem with some necrotic spots developing on a few leaves. I am using AN sensi grow pH perfect in RO water. It is currently at 1/4 strength with cal-mag, b52, and hydroguard. At 1/4 strength the pH usually sits at around 6.1 and PPM around 950. I figured this was a calcium deficiency so I doubled the cal-mag and added 10mL to my 4L reservoir during a nutrient change a few days ago but it doesn't seem to be stopping. This plant is about 2.5 weeks from seed and is just under a T8 shop light that is on 24/7. This issue has started at the bottom of the plant and is slowly moving up. Despite this problem this plant continues to grow pretty well and is putting on new growth and roots. Room temp is 77F and RH 50%.
The first picture is a fan leaf on the 3rd node and representative of how the leaves start to become affected. The more severe damage is from a leaf from the 2nd node.
Is there something else going on with this plant?
The first picture is a fan leaf on the 3rd node and representative of how the leaves start to become affected. The more severe damage is from a leaf from the 2nd node.
Is there something else going on with this plant?
