She's deficient, I just don't know what

[cr0sis]

This is one of two cuttings I removed that are showing signs of something, the other leaf barely has 3 of the same spots on it so I didn't bother taking a photo.
The rest of the plant looks fine, this is quite an old leaf and one of the biggest/lowest she has.
Growth conditions in signature. (indoors)

[Balu]

https://www.growweedeasy.com/cannabis-plant-problems/calcium-deficiency

[VN1970]

Could be insect damage looking at the white dots. Is that a ladybug 🐞 on the top left?

[cr0sis]

Could be insect damage looking at the white dots. Is that a ladybug 🐞 on the top left?

Nah, just a droplet of concentrated feed, little clumsy so there's a small pool in one corner of the tent I haven't mopped up. And by small I mean several ml's, no more than 10 and the pots are no where near the corners.

https://www.growweedeasy.com/cannabi...ium-deficiency

Ah-ha. This looks likely. I have calmag but I wasn't sure if I'd overdo the magnesium by adding it with my 3-part feed? I haven't been adding it every feed so I guess I should start at least.

[Catfish22]

Spilled nute water.

[Balu]

Hi, the cheap solution is calcium saltpeter, but I wouldn't use it for flowers, I use: https: //www.eurohydro.com/calcium-magnesium-supplement. if you use LED lights, add CalMag as a precaution

[TOKABIGONE]

Larger lower leaves loosing color very well could be natural aging and the plant is drawing nutes out for use on new growth/buds. How old are your plants? In bloom?

[Farmbuck]

Not enough infos to make a judgement call.