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If your ambient temps are no higher than the low 70's, it won't have a significant impact on your grow. As water temps rise, the amount of dissolved oxygen ("DO") drops, the chance of root rot increases, and growth tends to slow. With multiple buckets, adding frozen water bottles may become a...

Glad I found this thread because it helps solve a mystery about my plants. These are from "Original Glue" seeds which, I just learned, are the new name for Gorilla Glue after a lawsuit. GG works for me. I bought a pack of seeds from Nirvana in 2022 and had three left over so I popped three...

Your plant is looking really good. Excellent color, zero sign of nutrient imbalance, temp is a tad low (28-29 would give a higher growth rate), water temp is a bit high (20° is slightly more O2 and less chance for root rot) Great formatting for the journal, too! Re "two plants next time" —...

"bought in bulk" - same here. 25 pound bags of each and three res changes per grow, two grows per year. At my age 68, the ferts will last longer than I will. :-) I grow in hydro (1 plant in a res that holds 28 gallons in a 2' x 4' tent) and run 3-2-1 for RO, same formula from drop to chop...

I'd like to run CO2 in my 2' x 4' tent and have run some numbers through chatGPT. The key obstacles to success are the need to control RH and temperature. These are major factors for growers who aren't in the frost belt. If you can grow in a basement, that will make a significant difference...

Yup, KISS has a lot of merit. The "80/20" rule definitely is at play when it comes to growing cannabis.

Agreed. They're doing really well. Soil seems like a crapshoot to me so hat's off to you for doing so well with it. I hope the switch to coco goes well for you. Hydro is a big change from soil but coco seems to a happy medium (no pun intended) because you don't have the issues with pH that...

Beautiful color and it looks like you've covered the entire grow space. That's great to see. You can fine tune PPFD by moving the light 1" up or down and that will get you about 50µmol. If that small adjust is going get a light avoidance response, then you are really close to the light...

"that"—I counted up six assertions that I made in the text that you quoted. It would be more productive if you were more specific. Ah, OK. I'll take the comment "squeeze out every bit". Got it. From what you've written here, it sounds like you fed your plants a lot of light for one or more...

There are quite a few growers here in RIU that use it. I bought 1 25 pound bag of each Part A and Part B but I buy a new bag of Epsom before each grow (I do two a year) since Epsom absorbs water. It's similar to MegaCrop - two part dry mix. Both will get the job done.

Yeh, flower temps are a big deal, especially in CO2. Westmoreland, now Dr Mitch, did the original research back in 2021. I've attached a copy of his thesis. The CO2 work is one of the chapters. Lots of good info in there.

Jacks 3-2-1. It's a two part dry fert, just add Epsom salts. Cheap as chips and great results.

One of the problems with "listen to the plants" is that growers, overall, are terrified of giving their plants too much light so almost no grower gives their plants enough light to get close to the light saturation point. To most growers, 400µmol is the same as 600µmol is the same as 800µmol...

I think I look at the hang height recommendations from AC Infinity and got the :shock: look. I love me some photons but what they were recommending was high even for a grow running CO2. "Which light did you have?", he asks. [Looks at the name of the message thread] Aha! :-) At 24" it's a...

Yup, I watched it again and, this time around, caught the fact that he used CO2 when he grew his 26 ounce auto. And that got me thinking that maybe I'd like to run CO2 in my tent. I have some ideas on how to create a "semi-sealed" environment. :-) 28.5/83— agree, that's too warm. 25/77 is...

Nah, I just read a lot! I'm not familiar with the "bits and pieces". "I" (phonetic "India") is the abbreviation for amp(ere) and V is the abbreviation for volts. Given that the light is changing intensity, I suspect that's their meaning. Personally, I wouldn't muck with them but it could be...

Good that you're not chasing leaks. Some growers DIY and have to redo some of the plumbing. Nice to have the separate containers and the big grow space. I'm pretty much limited to a 2' x 4'. H2O2 for the roots. Good idea. I had one small instance of root rot—nasty. $40 for GH is great. When I...

Sounds like my posting was more clear than the PDF. :-) I appreciate the feedback on the document. It's very cut and dried so perhaps more descriptive text would help. The big drivers for converting lux to PPFD are that blue in the spectrum results in lower PPFD while more red raises PPFD. The...

"bar style" - meaning front to back rather than side to side? That 750's really sweet. What light are you using now? I did a "Contact Us": "Are PPFD maps for the Aray 150 at 12" and 14" hang heights available?" and got this reply: "we only have PAR maps available at 16", 12" hanging height...

The difference between 3500 and 3000 at 55k lux is about 11µmol. Check out the the attached document I wrote about converting from lux to PPFD. A QB 288 V2 4000K has a factor of 0.0144 but the QB 288 V2 3000K is 0.0146. At 55k lux, the difference in PPFD would be 55000*0.0002=11 In the second...