Is this a deficiency?

[Bigjmw32]

Autoflower day 29. First week of flower. Just starting using fert 2 days ago when I noticed the issues on the leafs. From what I’ve found from researching I’d say a phosphorus deficiency? Any and all helped is greatly appreciated!

 

[Fart Vapor]

Did you mix your fertilizer to exactly 50% of recommended feeding schedule and pH it to exactly 6.5? Also, is your temperature at 75°F (24°C) and your humidity at 50%?

Check out the deficiency identification pictures in this link: https://www.rollitup.org/t/have-a-plant-problem-check-here-first.157345/post-15504051

 

[Hobbes]

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[Bigjmw32]

Did you mix your fertilizer to exactly 50% of recommended feeding schedule and pH it to exactly 6.5? Also, is your temperature at 75°F (24°C) and your humidity at 50%?

Check out the deficiency identification pictures in this link: https://www.rollitup.org/t/have-a-plant-problem-check-here-first.157345/post-15504051

Sorry should have gave that info. The leaves started doing this last Wednesday so Friday I thought it was a deficiency so I started to fertilize. I did 25% of the recommended dose. Temps are around 78 at 55 percent humidity. I always ph to around 6-6.5