Phosphorus deficiency?

Is this a phosphorus deficiency or what is it? Another thing will the Stem recover? Or what is wrong with it.

Nothing wrong with the plant bro, chill...chop those couple dying leaves off at the bottom and keep doing what ur doing.

Exactly what mud said

Phosphorus?! What on earth made you think that lol.

You seem okay. Just don't "over" care

What do you think of Compost Tea? Is it any good?