Is it consistent on the plant? All the leaves......old leaves......new?Those are the red poison strain, in my other tent the 3rd red poison is same color, that is my thoughts anyways. from seed's 1st few leafs they were that color on all of them, i was thinking it was just a strain thing. Because 3 in each SIP and each red poison is with 2 other mates, i was worried at 1st but i think it is just its unique color of red poison.
Thoughts?
This pic concerns me. I really suck at leaf diag! The color variation is what bothers me. Do you know what ppfd the girls are seeing?
I really don't see anything in your media mix other than 1.5 cups epson salt,, but that's over 30gal. That's just my feeling about epson salts in a pre-mix. It does have it's place, though.
I would suggest you make a post in the sick plant section and give as much info as you can. LOT better diag experts there!