Help p defenciency or nitrogen?

Hey guys just like it says. What defenciency do think im having? Posted on another forum but got some conflicting answers. Some say nitrogen others say p some say bump my rh up to 60 while im in flower.

Afghan kush
400w hps
Bout 3 and half weeks flower
Ff trio

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More likely that’s an old fan leaf the plant doesn’t need any more. It’s consuming the N and will release it in a few days. You can add some Grow Big to your mix if you like though.

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60 is okay during veg, but high humidity can cause problems during flower. The most common being bud rot, which can destroy an entire harvest, it not caught in time.

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Ok im no pro but i thought 60 was high for flower. I might add a little grow big but other than that eould you guys say shes ok? Also when water with plain ro water do i have to ph it after adding calmag to 200 ppm?

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Yes you do.

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