Can't figure out what this is.

Hey guys, so my plants are a few weeks into flowering now and I've been having this problem with yellowing leaves. Now I know this is really common but they aren't yellowing like a nitrogen deficiency..it's really strange. This problem has occured recently too, other than that my plants have always looked pretty healthy. What's going on?



Lots of different leaves that dont look good. Some are completely yellow and dead looking while others have something like a pattern on them of yellow. This is pretty much all over the plant except for anywhere where buds are. Where the buds are the leaves are still healthy and green.

What is your grow medium? What is your temp/rh? Are you supplementing calmag? Could they be root bound? Are the rest of the leaves healthy. What is your water/nute schedule? PPMs and PH?

Looks like you need some cal mag to me and you are in the later stage of the deficiency.

warble said:

What is your grow medium? What is your temp/rh? Are you supplementing calmag? Could they be root bound? Are the rest of the leaves healthy. What is your water/nute schedule? PPMs and PH?

Click to expand...

I grow all my plants in FFOF, temps are in the 80s while lights are on, RH is usually 40%, and I add 1 teaspoon of calmag every watering. The only leaves that look healthy now are ones near bud sites. I've got one in the 5 gal where most of the pictures come from and the other 2 in the 3 gals. I haven't measured ppm because my friend sat on my PPM meter during a sesh, need to buy a new one..PH is always 6.5.

Here's a pic of most of the foliage. As you can see if you zoom in its mostly on the bottom half of the plants.