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Amen: I drank deeply of the AC Infinity Koolaid and zero regrets. Real time screen from the app. Day 59 for the grow, week 2 day 5 of flower. Chart shows the data from a few days of the past week. Lights are on from 0900 to 2100. High temps are from when I moved the sensor out of the way to...

Those are different parts of the grow equation. Hydro is a way of supporting the factors that comprise the root zone. "growing outdoors" encompasses the "above ground" parts of the grow environment. The biggest advantage of growing indoors is the opportunity to control every aspect of the...

This is from a Bugbee/Westmoreland video from a few years ago. As DLI increase, metabolites changed but there was also a change in the size of the colas. Granted, no one grows at 10DLI but the different between 30 and 50 is germane. And if you can increase CO2 levels to 1200, you should see a...

I got a Bluelab about a year ago so it's not the WiFi version. [Googles growee] Wow, they're all expensive. Until AC Infinity add a peristaltic pump accessory. They have a new controller and will have a hydro sensor for it in a few months. The pump is the missing piece of the puzzle. As I...

How important? I would say "somewhat". A year ago, I bought a doser because I wanted to not have to keep adding Up or Down and because I wanted to nail it at 5.8. The owner of this site is a Ph D in chemistry, a Bugbee coauthor, and the author or Hydro Buddy. In short, he knows his shit. I...

Net photosynthesis is the amount of glucose generated by a leaf during the process of photosynthesis minus the glucose used by the leaf during the process of photosynthesis. The Chandra paper was a big deal for a variety of reasons and one of the impacts of the paper is the data presented in...

Ambient temp makes a huge difference in growing cannabis. This graph is from the paper "Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions", lead author is Suman Chandra. Per its title, the main focus was on the...

Yeh, I was thinking of "below the neck" implants. ;-)

No idea what this means. I'm providing the recommended values for the company that makes the product because I thought it would help the poster. I agree that any one is free to contribute and it people want to chime in, that's great. I spent some time finding the information for the OP and...

I think it's accurate to say that leaves change color only as a reaction to a change in chemicals in the plant. I wouldn't say it's a function of not getting light. The plants below are my current grow and they were vegged with a veg light, then a flower light, and then flipped. There's a lot...

You're welcome!

Just looked them up. Sound interesting!

I think you've brought that up before and it's great info. What is it about 640+660 that boosts yield? The current grow lights use 660 so what will it take to get 660 in the spectrum? If the boost is that signficant, it's worth it for cannabis growers but we're a tiny part of the overall demand...

Yeh, fox tails can be caused by too much of a good thing. I grow at high light levels because more light, up to the light saturation point, results in a larger crop. One of the issues that I run into is that the light levels at the center of the PPFD map are a big higher than at the values...

If you have a non-removable driver, it could be a fun project though, personally, I'd rather spend a few hundred $$ and get a bar style light. If you have a driver that is removable, why not just remove the driver and suspend it above the grow space?

75% at 45cm is about ½ the amount of light recommended by the manufacturer. Their recommendations are here. Your plants have a good coloring and the canopy covers all of the available grow space, which is great. If your light levels have been at 50% of optimal throughout the grow, your yield...

IIRC, transitions are for mechanical devices so I didn't set them up. The heater has a Target value of 77 and Hugh is set for a Target of 1.2. I have three fans on the C69 (Pro+) and they run all the time. Have you seen this little gem? I'm in a 2' x 4'. After a couple of years of growing...

I agree with your comment about hydro. I haven't seen data on it but it holds that hydro allows nutrients to be delivered to the roots the most, allows unimpeded root growth, and it the fastest mechanism to deliver a changed fertilizer mix to the plant. In terms of quality, I'd argue that it's...

pH of 6 is the new optimal (per Bugbee) for hydro but I think it's too low for soil, where 6.5 is the mark. Re. dosage of CalMag - CalMag is part of a lot of nutrient formulations but the dosage will vary. If it's required for your fertilizer, great. If not, I would not add it. I don't know...

That's helpful info though, because all the numbers are good, the benefit is that it helps rule things out. This graphic can be helpful in terms of understand what makes things happen in a grow environment. Your temp+RH (VPD) values are good, you're not giving them too much wind (that can...