Bright spots on upper leaves

[Liam300]

Hello! I’m growing Ice cream cake in a 5 gallon bucket using DWC method. It currently just entered week 4 of flower, this girl is a monster and has shown no signs of any issues and has taken pretty much anything and everything I throw at her. Yesterday I had to fill her up again so I switched the bucket for a fresh one and filled it 3.25 gallons of dechlorinated tap water then added floramicro (15ml)and florabloom (30ml)and (10ml) of cal mag and PH’d it to 5.9 as always. The ppm was sitting at 1150 which she has had no problem with before. This time I did remove floragro from the mix and something weird occurred. Im not sure if it has to do with removing the floragro but the upper leaves have began to have some bright reddish brownish spots scattered around. It’s not on all the leaves but concentrated on a few of them. Besides the spotting she is still very happy and doing well for now. I have to fill her again tomorrow as she is chugging over a gallon a day now. I didn’t want to jump the gun on anything and the problem didn’t seem to progress much today, but I’d like to address it quickly. If anyone has any idea what’s going on here let me know cause I’m out of ideas. Thanks!

 

[013]

Spilled nutes.... or rust maybe?

Snip that leaf off and see if it goes away or comes back and spreads

 

[Freak Brothers]

It looks like a nutrient burn,,and I agree with 013 that cropping the damaged leaves might stop it spredin

 

[NuttyProfessor]

any drips coming off the tent , seems to be in one area , any condensation ?
its a very strange looking symptom

 

[013]

Good eye Professor... could be!

Liam, can you wipe the top and sides of the tent to check for condensation? There are a few other affected leaves I see there