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It’s pretty cold here so i have a tiny 350w heater in the tent set to 76F. Humidity about 50.

Running a Mars ts1000. It was at any 80% up to last week since i had some leaves showing possible light burn but it’s been resolved and now at 100%. 20/4 light schedule. 2.3x2.3 tent. Pics taken at minimum light output since I usually turn it down when I go work on them so I don’t burn out my...

My two autos are exploding like crazy in flower. I already did a very light defoliation of the bottom areas where the leaves were blocking airflow or going yellow (about ten fan leaves total). I also had a slowly decreasing ph problem so I lightened up the ppm a bit from ~1.45ec to ~1.0 and the...

Ah ok. Makes sense. The progress isn't going as fast as some charts show, so I'm just trying to adjust on the fly. Not sure when I should start this "preflower flush" but I guess I can do a partial res change at the end of this week if I start seeing more flower-looking growths. I started w/...

Is definitely stretching right now. Drinking about 1/2gal per day and going up. I guess I’ll add flower nute mix as I refill. Weird thing is the nute chart tells me to reduce overall ppm for a week. Why?

I’m trying to figure out what nute ratio to feed and nit really sure what stage this is. Is this preflower? How much longer before I should switch to flowering nutes? Thus is an auto on day 39 since sprouting and 32 since transplant into dwc. Had a slightly slow start due to leds being too...

They're autos, middle of week 4.

I have a few (1 or 2) small stems w/ pistils showing that are at the bottom sprouting from the first or second nodes. Should I get rid of those? and if so, how? I tried opening up the area to allow direct open lighting to these areas in hopes that they'll grow and stretch to fill the light...

I guess I'll leave them on and let the plant self-cannibalize. The new growth looks strong, roots are clean and growing strong, and water/ph/ec are all in check. I just need to do something about the bushiness of that one plant. Thanks! I check daily when I lst and there are no bugs. Plenty...

4th week since germination on my autos. Rdwc, flora nutes at 5ml/ea per gal and 3ml of calmag using 2gal tap and 8 gal ro water. H2O2 and bleach cycled every other week. Had some early deficiencies (no idea what) but they mostly went away since my full res clean-up/change a week ago. Had a...

I suppose it depends on how much needs to be treated. I use a combination of both (alternating of course). Isn't chlorine also a descaler?

bleach is a lot cheaper?

Here’s what it looks like on a slide at 250x. Comparison to a fan leaf at the same magnification. Changing out the water today and running bleach through it to clean.

Rdwc, 68-72F, 400ppm flora series, no light leaks. Ran h2o2 and had some of this stuff, switched to bleach at 2ppm and still have this stuff. Looked under microscope and it doesn’t appear to be algae. Plants and roots are doing fine.

The waterfall system is essentially the same as UC. Water will return to the res.

Bleach is different from HOCL. The chemistry is similar, but they are completely different things. HOCL (UC Roots) is what they use in disinfectant foggers. Much higher oxidation power at lower doses. Electrolysis of NaCL solution is used to creat this, but you need a membrane to separate...

That's what I said. Somewhere around 0.5ppm. I know it's unstable, but for someone that has a large system, they can get the 500ppm stuff for way less. Or split a gal w/ a few friends? Seems like you can get smaller bottles of HOCL as well.

Probably? Looks like multiple different things are used for brewing sanitization. FWIW, the dry chlorine dioxide tablets/powder is just solid sodium chlorite, some solid acid like citric acid, and inert filler. Edit: Found more info... According to the MSDS Oxine is minimum 3.35 sodium...

I see you're looking at a lot of alternatives for res sterilization. I've been going down the same rabbit hole. So far, looks like chlorine dioxide is created with a mix of sodium chlorite + citric acid. Both are relatively cheap compounds. Another option is using antibiotics. Erythromycin...

in case anyone is interested in an update... followup to what I did 9hrs ago in addition to fixing the light leak... - placed the girls in a smaller bucket w/ 5ml/gal 0.03% chlorine solution (homemade uc roots) to rinse off whatever was stuck on the roots - much more of that gunk was stuck to...