Rust help

[TheRocket]

Hey guys

Getting leafs full of rust, there's literally 21 days left to run on them so whilst I'm not hugely concerned I'm just worrying they will effect overall yield. The girls smell amazing, and Frosty as hell...

Could having the lights a bit low of caused the rust but now it's set in its spread?

Ph is 5.8-6.0
Lighting 2 x 400watt
4ft x 4ft tent
5'' out take fan
Temps 30oc
Feed EC 1.2

 

[The Germinator]

I'd add a little calmag. They look great though.

 

[TheRocket]

Oh and I've been supplementing cal/mag since I noticed the rust, bit late by then I know lol

 

[TheRocket]

Yeah the buds look spot on, and the sugar leafs aren't really effected like the main fan leafs