r/macrogrowery

▲ 19 r/macrogrowery+1 crossposts

Free seeds from Katsu seeds.

Here is a link to a free pack of seeds from Katsu, most known for holding and passing cuts of bubba that we now call pre-98 bubba. I have never grown his breeding work but I know people regard it highly.

I had to pay $12 for shipping but I got a pack of stoney’s Staten Island Diesel x (katsu bubba x paris OG × Face Off OG × Cookies). He calls it gas casket.

Cheers.

katsuseeds.com
u/Norcalmedicineman — 4 hours ago

Athena Pro feed schedule adjustment relative to ppfd?

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.

reddit.com
u/The_Cromulent_Bison — 1 day ago
▲ 7 r/macrogrowery+2 crossposts

Is this mildew??

Growing in 8x8

Temps stay between 73F & 82F night & day
With 52Rh im on day 30 of flower , I only seen this bit on 1 plant out of the 15 there was 1 leaf that I snapped and some poweder came off I’m sure it’s mildew but I really don’t wanna belive it

u/Busy_Impact_9622 — 1 day ago

How realistic is a cannabis farmstead in British Columbia ?

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.

reddit.com
u/Constant-Ship-5688 — 2 days ago

New IES CO2 Extractor - CDMH 20.1x.1f

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.

reddit.com
u/Dubpotions — 3 days ago

Has anyone converted a walk-in freezer into a commercial flower room?

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!

u/Joe84mobil — 4 days ago

Veg area sizing for clone production

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.

reddit.com
u/anxtherterrible — 7 days ago

Humidity Problem

Hi, How do you guys deal with humidity issue. I have about 200 plants. Running a quest and storm lgr dehumidifier but im still getting around 75% humidity when lights are closed.

reddit.com
u/raymxi — 11 days ago

Acclima Sensors

Yo guys if anyone needs any Acclima sensors let me know. I know someone that has 860 brand new sensors they need to get rid of. Was for a new grow that never came to completion.

u/xomw2fybx — 12 days ago

Swollen stem bases

anyone know what causes stem bases to get swollen like this? stems get brittle and snap easily. stunted growth as well.

usually appears a week or 2 after plugging the blocks into coco. some strains get it more consistently than others.

u/htk124 — 13 days ago

RO water vs RO + DI water?

We are upgrading our reverse osmosis unit and adding some pressure boosting equipment. I've noticed that many of the cannabis/hydroponic-branded RO systems have the 3-stage sediment, carbon, and RO filters only. Many residential/consumer units also have a 4-stage setup which adds the deionization resin cartridge.

Is there any benefit to the DI filter for cannabis growers? If you prefer to include DI when you make water, what are your reasons?

Thanks a lot.

reddit.com
u/The_Cromulent_Bison — 12 days ago