My DIY Hidro setup in Brazil

Bigalmoby · Mar 31, 2026

Bro I love your whole room set up it’s great plants look great too

GrowingDreamsBR · Apr 6, 2026

Update: pH corrected, everything is now in order.

Peace!

GrowingDreamsBR · Apr 10, 2026

Quick update: preventively spraying with azidractacin and Evidence WG700 to avoid problems during flowering.

The bathroom plants weren't spared either.

GrowingDreamsBR · Apr 12, 2026

Bigalmoby said:
Bro I love your whole room set up it’s great plants look great too

Tks bro!

Updating:

That´s all for today, peace!

TerpBeans · Apr 12, 2026

Are they flowering now?

GrowingDreamsBR · Apr 14, 2026

TerpBeans said:
Are they flowering now?

Not yet. They´re still a little small, I´m planning to flip in about 15 days.
peace!

GrowingDreamsBR · Apr 15, 2026

Updating again... Today I set up the automatic irrigation system and moved the old mother plants out of the tent. I’m going to flower all those giants and replace them with clones that I’ll keep smaller and bushier. Those big ones got out of control lol.

I built one irrigation system for 40 plants in flower and another for 10 mother plants. The veg in the bathroom doesn’t need it, I water much less there, there’s less light and less exhaust, so for now I’ll keep watering by hand.

I used:

30 m of micro tubing (4 mm inner / 7 mm outer)
50x 4 mm T connectors
50x GA-2 adjustable drippers
50x stakes for micro tubing
1x 40 L reservoir
3x 2000 L/h pumps
1x aquarium air pump (2 outlets)
1x quick-connect adapter for micro tubing
1x Y connector with quick-connect valves

I started by installing the T connectors on the main micro tubing. I calculated that the main line needed to be about 3 meters long, so I spaced the T’s about 7 cm apart.

Starting to fit everything:

Everything in place:

Overview with the mother plants outside the tent:

That’s it for today, guys.

TerpBeans · Apr 15, 2026

Well done Sir

Oldchucky · Apr 15, 2026

GrowingDreamsBR said:
Quick update: preventively spraying with azidractacin and Evidence WG700 to avoid problems during flowering.
View attachment 2623893

The bathroom plants weren't spared either.
View attachment 2623894

Better be careful with that evidence wg700! It is systemic!

GrowingDreamsBR · Apr 16, 2026

TerpBeans said:
Well done Sir

Tks bro. Peace!

Oldchucky said:
Better be careful with that evidence wg700! It is systemic!

Hey bro, how’s it going?

Yep, it can stay in the plant tissues for weeks. :/ I tried to avoid using it, but I had a heavy whitefly infestation before and couldn’t solve it with just biocontrols, and some weeks ago I found some eggs under leaves, so I had to use Evidence to clean things up before flipping and give the plant time for the plant to metabolize and degrade part of the product. Even so, I don’t overdo the dose and only apply it once or twice in more extreme cases.

After that, it’s just biological and mechanical control, with barriers like screens, air intake filters, and sticky traps for flies. Now I’m using “Siltac” — it’s safe and forms a polymeric "net" that basically “glues” flies, mites, etc. It’s pretty effective as long as the infestation isn’t too heavy like mine was...

Peace!

Oldchucky · Apr 16, 2026

GrowingDreamsBR said:
Tks bro. Peace!

Hey bro, how’s it going?

Yep, it can stay in the plant tissues for weeks. :/ I tried to avoid using it, but I had a heavy whitefly infestation before and couldn’t solve it with just biocontrols, and some weeks ago I found some eggs under leaves, so I had to use Evidence to clean things up before flipping and give the plant time for the plant to metabolize and degrade part of the product. Even so, I don’t overdo the dose and only apply it once or twice in more extreme cases.

After that, it’s just biological and mechanical control, with barriers like screens, air intake filters, and sticky traps for flies. Now I’m using “Siltac” — it’s safe and forms a polymeric "net" that basically “glues” flies, mites, etc. It’s pretty effective as long as the infestation isn’t too heavy like mine was...

Peace!

Right on! I figured you’ve done your homework being a medical user! One of your country men,Gui Santos, plays for the Warriors in the NBA! A young guy learning to hold his own in a tough league! Your plants look good! Keep up the good work!

GrowingDreamsBR · Apr 23, 2026

Oldchucky said:
Right on! I figured you’ve done your homework being a medical user! One of your country men,Gui Santos, plays for the Warriors in the NBA! A young guy learning to hold his own in a tough league! Your plants look good! Keep up the good work!

Tks bro! I appreciate it! Yeah, I’ve been studying a lot and trying to dial everything in. And that’s awesome about Gui Santos, always nice to see a Brazilian in the NBA, it’s a tough league for sure. Thanks for the kind words, I’ll keep pushing to improve!

Updating, everything has grown. I pruned to even things out and have been defoliating. I’ll switch the photoperiod at the turn of the month.

From back to front,

A lot of light, using on 45%, started to burn on 50%. (1920w as 8x240w in 3x1m)

The irrigation system is working. I refill it every 2 days because the reservoir is small, but it already saves me a lot of work.
I bought a plastic fuel pump style nozzle to use for occasional manual watering, but overall everything is automated. On the left are the old mother plants, I’m going to flower them all and replace them with smaller, better trained mothers.

My reservoir holds about 45 liters. I use two 2000 L/h pumps, one recirculates with a venturi to oxygenate, it runs 24/7, and the other is for watering, on a timer, 10 minutes 4 times a day. That green Y lets me choose whether the pump sends water to the automatic irrigation or to a hose for manual watering. It turned out very functional and simple, as well as inexpensive.

That’s it for today, folks, cheers!

defective · Apr 24, 2026

Cool thread man, love the set up and all those plants …one of the bigger rooms I’ve seen on here. Looking forward to the nug porn.

GrowingDreamsBR · Apr 28, 2026

defective said:
Cool thread man, love the set up and all those plants …one of the bigger rooms I’ve seen on here. Looking forward to the nug porn.

Tks bro. In 48h gonna flip it, hoping some big nugs.
Update, 2 days before the flip:
Everything was sprayed for the last time, I used Siltac, I had used Evidence in veg a few days ago, but close to the flip I preferred not to reapply it.

I still need to defoliate the lower part.

On the upper part, I’ve already removed all the large fan leaves, and I’m still taking off as much as possible.

The LED in the mother tent burned out its driver, so I replaced it with another 85W 301H Evo from YXO.

The plants in the bathroom veg area have grown nicely as well, they’re under indirect light, plus a LED similar to the mothers’, 85W, 301H Evo from YXO.

The older mother plants that I’m going to flower are huge, around 1.70 m, and in very small pots, I’m going to transplant all of them into 8-liter pots before flipping, I’ll probably change their position too, they were like this while I was cleaning and organizing the grow box, but they should end up lined up with the other plants...

Video of almost everything, new small mothers replacing the big ones...

Your browser is not able to display this video.

That’s all for today, folks, cheers!

GrowingDreamsBR · May 5, 2026

1st update after flip: I switched the photoperiod on the April 1st.

Some genetics got stressed at EC 1.5, (750ppm)so I had to bring it down to 1.3 (650ppm) for now

I did a heavy trim on the lower parts of the plants, and defoliated quite a bit too and moved some around to even out the lighting.

Now there’s less bulk and a more even canopy height. I also raised the LEDs a bit since I know they’re going to stretch a lot during these first 15 days of 12/12. Here I had just finished spraying everything preventively with Siltac.

I’m running an inverted photoperiod, lights on at 8pm and off at 8am. I’m still struggling to only work during the lights-on period. I don’t like turning lights on, even green ones, during the dark phase, but today there was no way around it lol

I also added this group of five mother plants that will go into flowering as well. I’m keeping smaller, more trained mothers because the mother and clone grow box is small...

In the bathroom, the veg is doing great. The 85W LED is at around 60% and growth is already very vigorous.

Midnight, and I’m messing with the grow like a zombie. I still need to get used to the plant care schedule.
Feels like jet lag, but from the grow photoperiod lol

That’s it for today, cheers everyone!

GrowingDreamsBR · May 5, 2026

Taking the opportunity to update the setup:

LIGHTING

2x YXO 85W 301H EVO panels (veg and mothers)
1x YXO 65W 301H panel (clones)
8x YXO 240W 301H panels (flowering)
1x 30W green LED spotlight
1x green LED strip

VENTILATION

18,000 BTU inverter AC
Industrial air cooler used only as a fan
150 mm Soller & Palau exhaust fan with carbon filter and silencer
Atlas CO2 controller with solenoid and 2 cylinders
Dehumidifier
Humidifier

NUTRITION and WATERING

~45-liter reservoir
Sarlo Better 2000 L/h pump for recirculation with venturi oxygenation (24 hours on)
Sarlo Better 2700 L/h pump for automatic watering in flower
Watering with Agrojet drippers, 7 mm microtubing
Digital timer on the watering pump
Mineral nutrients GD Scientific VEG and Bloom as base, plus fulvic and humic acids, amino acids, silicate, and carbohydrates

SOIL / POTS

42 8-liter pots with the soil recipe below:

Sphagnum Peat Moss, 70 L
Perlite, 70 L
Worm Castings, 40 L
Basalt Rock Dust, 5 L
Bokashi, 3 L
Biochar, 3 L
Neem Cake, 1 L
Oyster Shell Lime, 1 L
Agricultural Gypsum, 1 L
Kelp Meal, 0.5 L
Crustacean Meal, 0.5 L

GENETICS

Dutch Passion - Tropical Tangie
Exotics Genetix - Twisted Terpz
Fast Buds - Tropicana Cookies
DNA - Wedding Cake
Barney’s Farm - Mimosa EVO
RQS - Royal Queen CBD
RQS - Charlotte’s Queen CBD

And a few more that are not yet kept as mothers, still in selection. I’ll decide after their first flowering whether they stay or not lol.

Galgrows · May 5, 2026

What a set-up i love watching you folks and your big grows. Thanks and best of luck down the line.

GrowingDreamsBR · May 8, 2026

Galgrows said:
What a set-up i love watching you folks and your big grows. Thanks and best of luck down the line.

tks bro.

Updating! 1st week of 12/12 h

From the other side:

Bathroom (veg)

Peace!

GrowingDreamsBR · May 8, 2026

Pic from 32 days ago (6/4)

Pic from today 8/5.

My DIY Hidro setup in Brazil

My DIY Hidro setup in Brazil

Bigalmoby

GrowingDreamsBR

GrowingDreamsBR

GrowingDreamsBR

TerpBeans

GrowingDreamsBR

GrowingDreamsBR

TerpBeans

Oldchucky

GrowingDreamsBR

Oldchucky

GrowingDreamsBR

defective

GrowingDreamsBR

GrowingDreamsBR

GrowingDreamsBR

Galgrows

GrowingDreamsBR

GrowingDreamsBR

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