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You know, I usually keep it bottled up but when someone tells me to salivate before I take a look, well, then you get what you get! Not impressed. In my opinion, they have a ph problem, and probably a heat problem. They should look way more blown up at week 7, but there's always next time...

Those are some of the worst looking plants I've seen. Trash them, clean your room, do some reading. Looks like to have a severe pest problem as well. Gross. Nuke it from orbit and start over.

I agree with this. Way too many white hairs still.

Don't worry about uniformity, cleaning the plant up and pruning it will cause it to gain uniformity back. Are you already in flowering? It's really hard to judge since you seem to have posted things out of order.

That plant looks extremely unhappy. It looks like nute burn, or splash burn compounded with what looks to be pests on the leaves. Maybe even some PM. Pull off a leaf, see anything on the otherside? Does it have white/grey fuzzy parts on the leaves? And your temperature seems a bit high. Let's...

I am happy to report, that after three days after having the new Sentinel ICG-30 burner, everything still looks good. I am very hopeful that this solved the problem. My Natural Gas/Propane/Carbon Monoxide detector is all showing 0 ppms as well. The plants look good, and I'll report back in a...

I snagged one of the icg-30 units today and going to install it tomorrow. I have a small room but I'm hoping this new burner is the end of my problems. @NE Gardens Did you end up testing any of the burners on that unit? They look strictly different than any burner I've seen and I don't know...

I've got a plumber coming to checkout the unit and probably move the regulator outside of the room. Besides the connections between the hose and regulator, the hose from regulator to device, and the actual brass valves (2), are there any other connections to check? Any other litmus tests to...

Good to note, I will definitely check on that as a source of error. Thank you very much @NEGardens. Has anyone ever used one of the combustable gas detection units? Are they reliable and can they detect at low ppm? I just picked up a couple of these and was wondering their efficacy: "Kidde...

NEGardens, sorry I may have missed your point. I had a plumber install my NG line and he put the regulator in the same room as the CO2 burner. Why did you suggest it is outside of the room?

Hey all, Just wanted to pass this along as information that will potentially save another grower a lot of time. I switched to a sealed room that gets vented a few times a day. As soon as I put together my shiny new completely dialed lab, where I could control everything, things went south...

I did mean transpire, though plants do respirate :). I think the problem is high temperature and low humidity. Are you running CO2? I should have probably asked that before I made the diagnosis. Though at 84 degrees, if you look at a VPD chart, humidity should be much higher, like 60-70. This...

I think the issue here is VPD, which is manifesting as an over cal/mag problem. The relative humidity is too high, the plant is respirating and getting rid of water, as the ppms increase in the medium and burn the shit out of your plants.

I purposely use white containers to flower in and clear cups for cloning for the very fact that they get light pruned. When they are light pruned, they back off from circling the growing medium and will bush out more. Of course the coco coir in the pot provides the needed darkness, but yes to...

I sent an email about getting half off so that I can do an entire run with osa28 and I have yet to be emailed back.

I'd like to thank you and the rest of the farm for this valuable information. I've always done well, but ever since I sealed my room and added Co2, I've had nothing but problems. I always got lucky at the sweet spot of running 74/75 F at 50-55% rh. Now I realize at canopy temp of 84, I shoukl be...

Why cut it around week 6? I use protekt silica up to near the end without any problems. Why would there be decreased benefit after week 6? I just started using Osa28 and that seems like a strange claim.

Totally understand the composition and why there is a multiplicative factor. My main point was at 775 ppms calcium, the amount of chloride is off the charts. Can plants handle that kind of foliar load without burning? I assume the answer is yes, given our discussion, however that's an incredible...

Quantrill, thanks for the catch on my measurement, whoops. Interesting about what you said about the blossom end rot, that seems like a very, very high concentration of calcium. And I looked into calcium chloride, but most were like 50ppms of Calcium for 150 ppms of Chloride. Seems way too...

Polysorbate 20 is an emulsifier and wetting agent. I use it to mix up the tria, then I add another surfactant for the rest of the goodies. Good news! I answered my own question. I found the Dissolvine CA-10, which is calcium edta that is almost 10% calcium. 1 tsp is 25 ppm calcium. Does anyone...