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There are more and more research becoming available now that this is legal in parts of the world and a major cash crop. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6811654/pdf/fpls-10-01120.pdf I think what's more important is unbiased testing. Testing takes time and money. And as you stated...

Anything under 242.4nm can split oxygen molecules. Who really knows? It's not like we can tell what uv spectrum the bulb is putting out. All we have to go on is the manufacturer information, and that's if they give it out and aren't lying. There isn't a specific wavelength that kills...

You can vary the wavelength of light produced via vapor pressure. You can filter out various wavelengths of light by doping the glass. (I think...:eyesmoke:) If you mix up the type of bulbs your using or turn certain types on and off, you can kill germs, generate ozone, both, either... Might...

Basically, yeah.

I'm using their PLANT-PROD 18-9-27 for veg. It might be discontinued or not part of their MJ line. Works well enough but there's a slight problem with the powder not totally dissolving. I need to crush up the crystal at the bottom of the container and give it a minute to totally dissolve. 1g...

I don't think its an 8 watt bulb in there. The one in the datasheet is drawing 35watts and putting out 8 watts of UV energy. Their bigger V1000 has 6 tubes so that might be driving up costs as well. Most importantly, anything rated as medical cost significantly more. Kinda like how a bag of...

Yeah their literature seems to be off. I'm actually running a test now and mixed 1g of bloom with 1L of water to get me ph 5.6~5.7, 540ppm The water alone is reading at ph 7.6, 0 ppm (I've seen the water read as 20~30ppm on other meters and the water company gives its official reading as 40ppm)...

It looks like you can also cut the bottom of the roll and make the pots shorter in height. Do you guys use a stand off or something to keep the bottom off the drainage tray?

I get it. That's all root from top to bottom. :o How well do the rivot things that hold the roll? together hold up? Even if they break you can just tie the thing into a pot shape right?

Its not really a one part. If you look at the % you'll see it doesn't have calcium. You're suppose to use it in rotation with their cal kick product or cal spike product. But you can't mix spike with anything else since its an EDTA based product, it has to be used in rotation. You can mix kick...

Why are you running a DC to DC driver? Are you planning to go solar or off grid? Or am I reading that wrong and you got a constant voltage driver?

Do you have to worry about nutrient solution temps with a hempy bucket? What about PH drift? I'm assuming you're getting better growth/yields with the hempy right?

Nice!

Yeah the plastic ones look nice and neat but I'm guessing all the holes will eventually get clogged up. I might have to learn to live with green algae fabric pots...

That's a great idea!

Might have had something to do with the perlite only grow or the plant not surviving long enough to suck the nutrients out of the excess water. Or that I let the ph drift too much. :wall: That's why I was thinking plastic for this round. Fabric is cheap and proven to work but I'd like a nice...

Thirsty hairs sounds good thanks!

It was worse before I washed it. Some of the algae was turning blackish.

How so? Roots grow and get exposed to air and get pruned is the definition of air pruning correct? Those are designed to do that but.... not sure how effective they are at doing so. I've been eyeballing those air pots pretty hard. They seem to be a pretty effective but they are kinda pricey...