HELP! Day 58 of Flower and having leaf issues

[Nausetchevy]

We are first time growers, but had help from a master grower. I feel bad always asking them so many questions, so I figured I’d try here this time! We are at day 58 of flower and almost all of our leaves are starting to turn yellow and some top leaves are turning a reddish color. One single plant (we have many of this particular strain) looks like it’s having major leaf issues and has dried up shriveling leaves. I know some plants leaves start to change color when it’s close to harvest, but I’m not sure it’s that or a cal/mag problem all of a sudden. Please help, all info is appreciated. Thanks!

[UndergroundFarmer]

I don't know if I can help much, but I can ask a few questions that may help more experienced growers to diagnose the issue. First, what strain(s) are they and what is the normal flowering time for them? If they are indica or indica-dominant, they may be very near chop time. Have you looked at trichomes and better yet, can you provide a photo? What are the temperatures like in the grow room? What nutrients are you using? I didn't notice any issues with the buds from what I could see in the pics. I honestly hope that the only issue is harvest time is upon you.

[Nausetchevy]

Thank you for responding. The strands are first class funk 12 and dragons blood hash plant. Indica-dominant for both. They should finish within a week/2 weeks. Trichomes are looking beautiful! Temperature is usually 78° with a little under 50% humidity. We have quite a list of nutrients... We’ve used one dose of cal/mag and just started using finisher 2 waterings ago. Then we usually use Superthrive. The buds look great though!

[gbauto]

Hi, Nausetchevy
From the pics, it looks like some of the plants may have a bit of nute tox/burn in the past while the other is deficient. Can you offer any more info on the soil and nutrients you're using?

[Nausetchevy]

Hi, the soil is Pro Mix and Ocean Forest. We are using Green Grow green aminos and Finisher.