Day 15 - She's looking good! The difference between her and the blurple girls is fairly drastic and maybe a little deceptive. The blurple girls are almost a third taller, but they have the same leaf mass. So less stretch on this side of the space. I've been watering in a small ring around the girls with a small squirt bottle daily. Today they all got their first real drink. Spread one gallon across all five girls, just to get the top of the sol wet. They'll probably be able to go another four or five days on that.
Day 20 - Catastrophe? Was adjusting her LST yesterday after taking pics, gave her a small tug, and the entire top half of her ripped off in my hand! (Shit) I ran upstairs with her, grabbed a bulk bottle of CA Glue (Superglue) and a toothpick, ran a tiny line of glue around the edge of her stem, ran back downstairs and mooshed her top back onto her bottom. She sealed pretty much instantly, like CA glue does to moist tissuey things. About an hour later, her top half was limp. A few hours after that it sort of halfway perked up, but was struggling. Her actual top is still alive 24 hours later, but still rather limp. Her two sets of fan leaves are less happy. I don't know if her main stem will recover, or recover before those fan leaves die off. I fed those leaves directly via foliar, just to see if I can give them enough nutrients to survive in the interim. I'll baby her until I know for sure whether her top half recovers. Either way, her bottom half is just fine and didn't even stall, shooting her leaves out by almost an inch overnight. So what we have is a really mighty mega sort of supercrop or a flat out topping. Dunno yet. The limp bit still alive bits at the center of the day 20 pic is the affected area.
Looks like a sulfur deficiency. You can give her some magnesium sulfate (Epsom salt) for a couple of waterings in between feedings. Use 1/4 teaspoon per gallon of water it should help green her back up again.
@Philindicus, Nutes in are at 6.15ish and runoff is at 6.6ish. She's actually recovering at this point. I did some magnesium sulfate as you suggested and while those top leaves don't look much better, the problem stopped cold and she's packing on bulk. At this point I'm officially calling her "Okay now"
Def no lockout because she's packing on flower and still stretching. Topmost layer of leaves is the only effected part of her and she hasn't gotten any worse.
It'd be a super weird issue if only this girl had a PH problem or a lockout because all five of the soil grow are in the same soil and are getting the same nute routine, and I'm PHing with the same meter for the other five girls plus the DWC. If any of them were going to be upset about bad PH readings, I'd imagine it'd be the DWC first. At this point she only has three weeks or so anyway, so we could be looking at a combination of things, including a bit of natural fade even, but all of her new growth is lush so I'm guessing it was a non-mobile nutrient. Sulfur, like you pointed out as a possibility, is a semi-mobile right? So she may just not be able to green back up as quickly.
She only started going really pale eight days ago and she's only had one feed in between, with the MagSulf.
@Hexus, I think I would give her a flush it could be nutrient lock out. It looks like more than just one deficiency. Check her runoff ppms see how high they are also the runoff ph see if it high. This could be the issue.
@Philindicus, Didn't see this post! Sorry. Nah, that's the grow room. I built it to grow in. :-D We have 2000 square feet of unused basement so I figured I would build this room as a practice run for completing the whole space.
Looking really great! I have 2 out of the 5 Zkittlez in my tent that are looking very similar to your Zkittlez. They're late to flower too. My other 3 Zkittlez are much larger and started flowering sooner. Happy growing!
Fungus gnats very persistent little f#*ckers. I had some on my last grow any one who tells you they're easy to get rid of is full of it! If you have one plant that has them you may have more in the future. I tried a few natural ways to "control" them. You can try mosquito bits mixed in with your soil mix. It takes time but they may help. They love moist places to lay their eggs. I stopped short of using Azamax on them because I'm afraid it will kill my beneficial microbes.