Rust spots on leaves

[Suck]

Hello guys,

i was wondering if you could help me identify this issue. The plant is approx in fourth week of flowering and shes doing fine but some of the leaves have weird rust spots on them. Could it be Rust fungus or something else? And is there something i can do ? Thank you in advance. Peace!

 

[Pennywise]

That’s a calcium deficiency

 

[Suck]

That’s a calcium deficiency

Ok, thank you sir. So i guess that has something to do with PH, cuz i am using Plagron alga bloom exactly by manufacturer instructions.

 

[Pennywise]

Check your ph to make sure it’s in range. If it is then add a calmag supplement.

 

[Suck]

Will do, thanks again. Just out of curiosity: what impact would it have on the plant if i just leave the way it is since i have only like 2-3 weeks to finish?

 

[Pennywise]

It'll make to harvest most likely but you'll lose final weight