Hello fellow growers! Today marks about week two of when I first noticed my plant begin flowering/preflower. (It had a late start, seeded on June 14th and moved outside around July 4th via Long Island area) The soil mix is as follows:
coco coir
Perlite
Vermiculite
Organic compost
Bat guano
Kelp meal
Alfalfa meal
Dolomite lime
I’m starting to notice that some of the fan leaves are having these light looking spots/tint. Im growing GG4 x Zkittles in a 7gallon fabric pot. I fed her about 10 days ago, just top dressing with, bat guano, compost, and kelp meal. This is only my second season of growing and just looking for any insight or tips from this stage or if these changes in the leaves are signifying an issue of some sort. Here are some pictures of it below. Thanks everyone!
Welcome to the forum.
Looking good. I don’t see anything to worry about. It is normal for a plant to develop a few blemishes as it matures.
Should I be top dressing each week moving forward as its flowering?
Do you ever give it any cal-mag? If growing in straight coco I know it’s important to feed it cal-mag, not so sure with all the other stuff you feed and mix in with the coco.
Looks to me like a slight magnesium deficiency, not anything serious, but a little cal-mag might help.
It was 1 part coco to 1.5 part compost and fox farm ocean forest among the other ingredients listed above.
Little update on the plant from two days ago. I top dressed with some bat guano and compost. Any advice on that funky looking leaf and the other leaves?
The first leaf looks like it had a leaf miner. They all look to me like you could use some Cal-Mag as @CMichGrower suggested. 
Your top dressing sounds nutritious enough but I’m wondering if your plants are getting that to their roots fast enough?..I would suggest Jacks 321 as a good nute combo to use…Your plants actually don’t look all that bad but I think need some boost…
How often should be using calmag? Everyday with watering or just 2-3x a week.
I think I used it with every feeding…
I do as well. Usually 1 Tbsp added to the gallon of water I put her food in. Anytime I give her extra for stress I use 1/2 as much of both in the gallon.
Here’s a little update. I was away for a week and wasn’t able to keep a close eye on it. Friend watching it, fed it only twice with Cal-mag. I removed about 10 leaves all looking like this. Any ideas on here, this is what the leaves are looking like after getting a feeding twice in a week. Any advice on feeding schedule or other deficienies it may have? Thanks Yall!
Some leaves naturally die off as the plant flowers. Specially the ones that are bigger and near the bottom of the plant. If its happening all over the plant then it needs something. As Mj flowers it requires different nutes.
Gotcha thank you! Is it pretty normal for my plant to be thinning this much in the flowering stage?
Sometimes, yes. Usually at this stage they’ll stop putting out fan leaves and focus more on bud development.
@Greeneyes21. I think you are experiencing nutrient lock. I too was feeding at what seemed like a slightly advanced pace (2 a week). After noticing the exact same signs (those came from the center around the bottom and middle right?), I did water only for a week and not only did the yellowing stop but she picked up the pace on developing. I haven’t gone back to see what soil and nutes you’re using and I know a lot of people expect some fading during flowering, but yours seems a bit much. My experience however has been that commercial soil and nutes lock up around this time. If you’ve been double feeding there are probably plenty of nutes in your soil. Are you able to check soil pH? If so, shoot for 6.8 you can use a tsp of vinegar in a gallon of water to lower or a tsp of baking soda to lower. If not, I would do water only for a week and water until you get about 20 percent runoff each time. She what she looks like, then start a normal feed cycle again.
Thanks @Shadegrown. I’ve just been watering for the last 4 days and already seeing a significant improvement all over with in the plant. My ppm run off right now is sitting at 400. Im watering with filtered water with a Ph about 6.1. Im honestly having trouble dialing in my PH in the water. I bought PH up and it my PH to 6.1 to 4.0 not sure if i may have bough the wrong PH fixer 
. Im now unfortunately dealing with a caterpillar mess as well. Pulled off a dozen of them today and tried to scrap out some of the shit there leaving behind.
Thanks man! I’ve been inspecting in the AM and PM and pulled off only two so far this morning haha. I swear I added tsp of baking soda to my water and it dropped my PH from 6 to 4. Im starting to wonder if my PH meter is not calibrated correctly perhaps? Either way I just bought a bottle of PH up and PH down to hopefully fix this confusion. Its making me feel like a real dummy
Don’t fret it. We’re all learning here and looks like you’re doing just fine. 
) thinking it’s powdery mildew. 