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Depending on the time of year my RH can go well below optimal even during flower. I prefer to attempt to keep vpd in the ballpark throughout the grow and has worked for me.

Outdoors this time of year and in flower I'm thinking she's very confused about what she's supposed to do. Longer days should gradually send back into veg hence bud development is arrested. I'm fairly inexperienced so take my advice with a grain of salt...imo I would expect little to no new...

Are you using a mist humidifier with tap or well water? The minerals will drop out of solution as the water evaporates and leave white powder around as fine as talcum powder. This can and will ultimately clog and ruin carbon filters. Ask me how I know this. Distilled water will solve this issue...

It's on my shopping list

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Any suggestions on treatment? In week 3 of flower. Although I think I can ward off an infestation keeping a constant lookout. If I remove any more affected leaves I'll put the scope on it and re-post. Thanks.

Sorry I tried with a handheld scope but I couldn't hold it still enough. The best visual match I've found is russet mite or hemp russet mite. If so the jury is still out on treatment as research appears to be in its infancy due to hemp/cannibis so recently coming out of the shadows. Also no...

Just saw some of these yesterday during defoliation. Most leaves that were affected were getting cut off anyway but still a few random sightings today. I experimented spraying straight 3% hydrogen peroxide on the affected cut leaves yesterday and appeared to kill the buggers. I then mixed a...

Following up it appears that the condition is improved since posting. In just a few days I have more roots and brown is greatly diminished. Only action so far has been to lower the rez temp. Hopefully that's all it needed. Planning to do a thorough cleaning tomorrow and continue to monitor...

Ok will do.

Voodoo Juice. Have some stronger fungicide on the way.

Correct the chill bucket isn't light proof but doesn't need to be as the nutrient solution circuit sees no light. Looks like this weekend will try to wash some of that off and hopefully the beneficials and lower rez temp will turn things around. Thanks.

Pics...first 3 are the cooler bucket. Rest are roots and dwc bucket. The rez temp is on an inkbird controller. Rise in temp brings on a pump that circulates the solution through the coil in the cooler bucket. Temp is reset to 63 with a 2 degree F differential. Nutes are in original post. Thanks

OK lowering rez temp as suggested. I had read 68ish was good is why i set it there. Thanks.

Forgot to add that light is blocked. Can attempt pics later. The nute mix is a light amber and this is definitely darker

First dwc in a single bucket. Noticed one brown root a few days ago. The rest were white. I cut the brown one off. Today I found the entire root mass is browning. I'm feeding Advanced Nutrients Trio supplemented with B-52 and Voodoo Juice. Resevoir is maintained at 67ish to 70F. Changing rez...

How much water did you use for flush? The few times I've flushed for suspected root zone problems I've found ppm and ph don't settle out until 3 gal or so have gone through. Especially ppm will start dropping then climb again. I keep flushing until ppm is below 500. My de-chlolrinated tap water...

I had a sour diesel that slowed way down in uptake for a few weeks. Otherwise looked fine. Afterwards it went back to business as usual. Only theory I could muster was it just wanted to ride in the slow lane for a spell. It was further into flower than yours. My temps got out of whack a couple...

Start with the basics. Favorable environment. Air flow into and out of tent...they need the co2 in the air. Humidity...my climate has low rh in winter and high in summer. Central ac keeps rh manageable in summer but dehumidifier is an option in lieu of ac. But then heat produced by it can jack...

Currently vegging 1 plant and it will soon need to vacate the tent during a week or so dry operation. A friend can take it in the interim. The move will probably be the week before Christmas and likely cold. My newbie question is between the house and warm vehicle is the plant negatively...