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I recommend antiseptic with pool shock. Calcium based is preferred over Sodium (household bleach) due to the potential toxicity of Na. Others prefer bio remediation, so your choice. Best of all would be a chiller, but cost is a factor.

If your reservoir is running above 22'C you need to either add beneficial microbes, or go antiseptic, which I strongly recommend -- but DON'T do both. For antiseptic, go down to your pool/hot tub shop and pick up a packet of 70% pool shock (Calcium Hypochlorite). Add 1.5 g to 500 ml H2O for a...

I'm a big fan of the Bridgelux EB Series. The gen3 strips are the current iteration. I built my own 400W light with these. Here's the post where I reconfigured the layout to better spread the light over the canopy: https://www.rollitup.org/t/bridgelux-eb-series-on-a-2-x-4-scrog.943414/post-13623954

Popped an RQS Critical on 11/5 along with a couple strains from other vendors. They're all in hydro and switching to 13/11 schedule today. First time running Critical so any experiential input re: stretch, nute tolerance, *realistic* flowering time, etc., would be much appreciated.

If I needed a new light, I'd be looking at a DIY build with Bridgelux gen3 strips, >40 watt/sqft, spread out to cover the entire canopy. Strips + drivers <= $0.50/watt IMHO, unless you want to grow xmas tree plants, stay away from the quantum boards unless they're adequately dispersed. Strips...

Compost tea takes care of my nutrient needs in soil, but megacrop would work as well as any other salt-based nutrient regimen. Certainly could be used to address any deficiency.

Mega Crop is $48 + $25 shipping. BTW, N-P-K is 9-7-14 for Megacrop.

Mega Crop is the answer. Been using it exclusively in hydro for 3 years. Complete, cheap and clean, with good buffering, and dead simple.

Maybe dilute your hard water with distilled to save some cash if it seems too high, but it would have to be pretty high for me to worry about it. Folks can get carried away trying to fix a non-problem. When you implement the "pool shock" treatment initially, be sure to soak your entire root...

^^^^^ This!

If you start in direct sun from germination, and if they get daily exposure to several hours of direct sun, yes.

If the seedlings have been started indoors, without direct sunlight, you should leave them out under partial/dappled sunlight for a couple of days before putting them under direct sun.

The social code worked for me; scored a bag of bud booster. Thanx, @GreenleafNutrients .

Interested in your Apple and Godfather. I just posted a trade offer for a few sativa fems. Let me know if you wanna do a trade.

Used STS to coax pollen from females to produce fems of: Wild Thai (WoS) Durban Poison (Dutch Pass) Durban Poison x Malawi (Dutch Pass x Ace) Looking to trade for stable genetics in fems. Not interested in regs.

Congratulations, it's a GIRL!!!

Google THCV, appetite. It turns out our endocanabinoid system is heavily involved in regulating weight through stimulation/suppression of appetite. My weight -- and proportionally, my appetite -- fluctuates 20-40 lbs below my "normal" weight, depending upon the mix of THC, THCV, and CBD in the...

Why not just add another sf2000? They're running ~$200 on sale.

I would go with the Philizon. The output and coverage are a reasonable match for your canopy size, though, would be better suited for a 5x5 area. An option to consider is dyi. You can put together an excellent light with samsung or bridgelux strips and save ~30%.

No idea.