We have grown commercially for over a decade under almost every spectrum imaginable - that being said - I personally prefer flower grown with HPS. I will say that some genetics seem to outperform with LED - but overall quality I have to give to HPS.

What are some strains that you find do just as well with LED?

Ky medical grow.

I'm getting close to pulling the trigger on the automation platform for a new commercial cultivation facility and wanted to get some feedback from people who have actually used Agrowtek, Growlink, or ideally both.

The facility will be 5 flower rooms running RDWC, so nutrient dosing is a big part of the decision.

Right now I'm leaning toward Agrowtek for a few reasons:

• Their RDWC nutrient and pH dosing system seems much more mature.
• I'll likely need to use Agrowtek for the dosing regardless.
• I like that the hardware feels more industrial and robust.
• The environmental sensor includes leaf temperature (IR) in addition to room temp, humidity, and CO₂.
• The system runs locally and doesn't rely entirely on the cloud.
• No ongoing software subscription.

What keeps pulling me toward Growlink is the software:

• I think the OS/UI is significantly nicer.
• Better analytics and data visualization.
• Overall seems like a more polished user experience.
• Great remote access.

The downsides for me are that it's cloud-based and requires a subscription.

Growlink told me they integrate well with Agrowtek hardware, but recommended sticking with a single vendor for simplicity. They also mentioned that if they were building my facility, they'd likely use Agrowtek for nutrient dosing but Growlink's native environmental controls and sensors.

So now I'm debating between:

1. Full Agrowtek (environmental, lighting, nutrient dosing, pH)
2. Agrowtek dosing + Growlink environmental controls
3. Agrowtek hardware with Growlink software
4. Something else I'm not considering

For those of you who have used one or both systems:

• What do you like and dislike?
• How has reliability been?
• How responsive is support?
• If you were building a new commercial RDWC facility today, which direction would you go and why?

What is the best bang for buck undercanopy lights right now? Looking to outfit a 120 over light room and want to add undercanopy to 7x 5’x60’ wide benches and 2 3x60’ benches

I’ve got a ton of equipment to get rid of. Anybody interested in some used gear?

I’m trying to fit the dry room into an area of my facility with a loft above it and the ceiling there is about 7’4”. Is this too low when considering circulation, a mini split or other a/c, and dehumidification? I have other spaces that have much higher ceilings if this is a big mistake but I prefer it under the loft for maximizing plant canopy. Thanks!

Hey guys I'm trying to help a buddy out but his setup is a little different from mine and I'm going back and forth on installing expansion tanks. Do you guys have them installed with your pump or is it just a pump specced properly to move the water? His set up unfortunately uses 4.2 gph drip emitters meaning his flow rate is 24.2 GPM of water. His last setup used a mini dab 3 centrifugal pump but it is on its last leg and not holding pressure . After calculating It looks like it's maximum is 22 GPM. I've sourced a new pump with a 26.5 GPM flow and my question is expansion tanks. I use one in my setup but because I only use .3 GPH emitters my flow rate is 2.2 GPM. I have an expansion tank but it's not huge and doesn't take up much space so necessary or not why not. For him my calculations say he would need 100+ gallon expansion tank to match his needs. Mostly it comes down to space and my question is with an irrigation system if your pump is specced properly to handle flow do you need an expansion tank or not to guarantee a long life on your pump?

Last month I made the post below, and so many of you replied warmly with help. I am so grateful for the community's response at 300 upvotes. I honestly fumbled it hard. With no website, no payment processor, and no idea how to price, I learned some lessons but managed to ship some product.

Unfortunately, my payment processor held the funds for 30 days after I shipped, then refunded the sales, so now I'm facing eviction with less inventory. I was able to reclaim some of the sales with follow-up emails (A SPECIAL THANK YOU TO THOSE WHO PAID AGAIN AFTER BEING REFUNDED, I MAILED YOU DOUBLE YOUR ORDER).

To those who received product, and to anyone interested in helping, please visit the new website https://blackpinegenetics.com and place an order. Orders will also be fulfilled with freebies, and a Dutch auction is live with heavily discounted prices. Hopefully the doubled orders and reduced prices on the new site make up for the initial pricing fumbles. Orders ship within 24-48 hours. Crypto/credit available. I made sure to host my own website outside the US and accept crypto this time, as recommended.

Also we just completed a HLVD test of the crop and we are 100% as of 7/10/2026

(Original post hit karma in this subreddit)

Liquidating genetic catalog. Shameless trying to make rent post.

I spent the last few years sinking massive capital into building a legitimate genetics brand. I contracted with dedicated labs and ran extensive indoor and outdoor operations to isolate the absolute best phenotypes. The crown jewel of this labor was the Gassy Lassy F1; a violently fast flowering autoflower engineered specifically for total disease immunity; extreme drought tolerance; and an impeccably even canopy that yields heavy.

We were slated to go live for the Black Friday rush. Instead; we got completely sandbagged. Our banking and payment processors panicked and locked us out over shifting regulatory spending bills. We pivoted hard to focus strictly inward on the local New Jersey market; only to get entirely kneecapped by the sudden April 13th prohibition definitions regarding viable seed THC concentration limits.

The current infrastructure is designed to seamlessly crush independent breeders. I am now sitting on a massive catalog of elite stabilized genetics; my production investment is entirely gone; and I am facing a total structural wipeout of my livelihood.

I absolutely refuse to let years of rigorous genetic engineering rot in a dark room. I need to move this entire seed and clone archive immediately to survive this state engineered collapse.

If you are a serious cultivator who understands the sheer labor required to stabilize these traits and wants to preserve these lines in your own library; my inbox is open. Let us talk shop.

The Vault List:

• The Diesel Foundation: Top Dawg Sour Diesel bx3 x Karma Sowah Sour Diesel bx3
• Cryo Haze: Super Lemon Haze x Ocean Freeze
• Super Lemon Diesel: Sour Diesel x Super Lemon Haze
• Glacier Storm: Slurricane #7 x Ocean Freeze
• Sour Hail: Hailbound x Super Lemon Haze
• Jet Scone: Donutz Triploid x Gassy Lassy x Super Lemon Haze
• Typhoon Fuel: Slurricane x Gassy Lassy F1
• Citrus Cyclone: Slurricane x Gassy Lassy x Super Lemon Haze
• Ocean Freeze (Pure Cut)
• Sour Diesel x Ocean Freeze
• Sour Diesel x Purple Lemonade
• Sour Diesel x Wedding Cheesecake
• Sour Diesel x Lemon AK
• Sour Diesel x Blood Orange Haze
• Super Lemon Haze x Hailbound
• Super Lemon Haze x Gassy Lassy
• Gassy Lassy F1 Auto
• Gassy Lassy x Manbearaliencheese Auto
• Gassy Lassy x Blood Orange Haze Auto
• Donutz Triploid x Gassy Lassy

[[email protected]](mailto:[email protected])

Is anyone changing their timing schedule towards the end of harvest like going from 12/12 to 10/14 or some version like that to mimic the outside sun for indoor growers? If you’re dialing back DLI towards the end would just dialing back the amount of hours of light but keeping the same ppfd do the same thing? I’m just spitting stoner thoughts at this point but I’m curious if anyone’s considered this.

Hii
Is somebody using (inline-) ozone generators as odor conteol on their exhaust fans? How did you choose a size and how risky is it?

I like to harvest my Sativa’s early. This is super silver haze auto!

First, thanks for stopping by and any help you can offer.

We have a pathogen/disease running through a couple of our moms right now (2 out of 70). It's causing symptoms very similar to revegging, but the plants have been under 24 hrs or 18/6 their entire life.

Symptoms are stunted plants, gnarled twisted new growth, small witches broom style growths, and single finger leaves.

Has anyone ever dealt with something like this, or know what it is?

How the hell are you guys keeping up with saturation in Hugo’s under LEDs? Constantly chasing my tail keeping these from drying back to much and just feel like I’m always adding another watering to the schedule and it’s still not enough. Looking for advice on running Hugo’s without slabs or stacking before I jump ship to coco lol.

Hi, i have this photos of mi vegetative stage. I m using ec 1.4 with coco. My Ph meter its broke. The lights are 50cm above. What can be the problem with the new leafs.

We run our lamps at a lower intensity during the hottest months of the year, so it stands to reason that our nutrient concentration should be adjusted accordingly. Athena's Pro feed chart recommends 2100 ppm throughout flower. Does anybody know if that's based on a particular or a standard ppfd? 2100 seems quite high to me, and I start to notice leaf tip burning above 1500. Would love to hear your experiences when it comes to light intensity as it relates to nutrient concentration. Many thanks.

https://www.reuters.com/business/energy/largest-us-power-grid-pjm-says-it-is-no-longer-able-provide-expected-energy-2026-07-03/

I have a new 20l IES unit for sale. This is the $200k model that has 4.2KG a min flow rate. Purchased about five years ago and has been in storage since. Let me know if you’re interested.

I have had a project i was thinking about for some time. Starting a cannabis ranch in B.C. producing outdoor high quality organic cannabis. Of course this wouldn't be the only income, also fruits and veggies and products derived from the production. Tourism would also be an income, small glamping tents or yourts. The aim would be to have some tours or workshops on site.

I am of course aware of the startup costs and hurdles with legislation and getting everything started. I was just looking for advice on how feasible this project is.

This is more of a dream right now but could become a long term project of mine.

Hey everyone, I’m looking for input from anyone with experience repurposing commercial walk-in freezers for cannabis cultivation.
We’re evaluating a retrofit of an existing insulated freezer space into a flower room rather than building a traditional HVAC system from scratch. The idea is to operate the room around 60–75°F with tight humidity control, using the existing refrigeration infrastructure where possible.
I’m especially interested in hearing from anyone who has:
Successfully converted a freezer into a flower room.
Retrofitted existing condensing units or evaporators instead of replacing everything.
Integrated dehumidifiers with the refrigeration system.
Learned any lessons about defrost cycles, airflow, coil sizing, controls, or maintaining stable VPD.
If you’ve done something similar, I’d appreciate hearing what worked, what didn’t, and anything you’d do differently. Photos, build threads, or engineering resources would also be greatly appreciated.
Thanks in advance!

Looking for some advice from people with more experience.

Planning a new setup with a dedicated veg area that can reliably produce 70-90 healthy clones every 70-90 days.

The whole thing will be in coco. Keeping mothers long-term isn't important to me, so if replacing them every cycle is the better option, I'm happy to do that.

If you were building this from scratch:

How much veg space would you dedicate to producing 70-90 clones?

How many mother plants would you keep?

What pot size would you use for mothers in coco?

Would you keep long-term mothers or replace them every cycle?

Any advice or lessons learned would be greatly appreciated.