Cal/mag deficiency or rust fungus?

Hey, ive had these rust spots pop up over the course of the last week. Ive given her basic fertilizers and also have grinded up some natural chalk for calcium but they keep expanding. Im worried it might be rust fungus?
Any help or feedback would be appreciated, thanks

Give some more info on what you fed...what medium you're using etc.

Need more info as to what nutes you’re using and how strong and what medium also looks more like a lot of the spots are where you dropped water or nutes on the leafs I see some fading but mostly looks like water spots what cycle are you in 12/12 or still in veg

Does it rub off like a fungus? Looks like deficiency

Ill take some pictures later but i was actually growing inside of a bong lol. This plant most likely wont see flower, just an experiment. Yesterday i cut a hole in the bottom of the bong and planted her into a pot.

So yeah, she lived with no runoff and very minimal nutes for almost 2 months. Im not suprised shes showing deficiencies and stress… but what made me worried was the fungus as it could attack my other houseplants.

It doesn’t look like fungus

experiment away bro

Probably deficiency. If you have any Epsom salts give it a dose. If it is low on magnesium, it will perk up quickly and you should be able to notice the difference within 48 hours or so.

If it doesn’t rub off on your fingers it’s a deficiency. I just tended to a rust fungus and on the underside of the leaves the rust spots are powdery and come of at slightest breeze or watering. That’s either Cal/mag def or lock out brother