DIY with Quantum Boards

Hey guys


Managed to sort out space for a 2x2 which I am hoping use a QB 135w.

I need everything to fit in the tent and be quite quiet.

What height do you think I will need the tent to be to fit everything in?

This is my equipment list and I was hoping to fit in a 5,4 which is 160cm

I have done some thinking and if my plant grows to 65cm then it won't work.

Do you guys use really tall spaces or train the plants to remain low? If so what technique and what do they grow to in height?

I know I need 18'' between light and canopy.


Grow Lab tent 60x60x160cm / 2x2x5'4


135w QB DIY set up or 150w mini-max hps/mh -- let me know thoughts please


125mm KSA acoustic box fan with temp controller and speed controller

150mm rhino pro carbon filter


Not sure on what pot size I should use. Was thinking of doing one big auto to begin with.

My thinking is

27cm for pot
65cm plant
45cm from light and canopy
5cm QB
10cm space between light and fan/filter
30cm fan filter

Total: 182cm and that's with small plant
How do you do it if you have lower height?

Sorry to write it out like this but I can't mess it up and want to start in early march. Any help is greatly appreciated as I am determined to use QBs.

For mag troubles only I sometimes use a little bit of epsom salts. A little goes a long way though. Only have had to do that a couple times but the difference was noticeable within a couple days.

magik1953 said:

Hey guys


Managed to sort out space for a 2x2 which I am hoping use a QB 135w.

I need everything to fit in the tent and be quite quiet.

What height do you think I will need the tent to be to fit everything in?

This is my equipment list and I was hoping to fit in a 5,4 which is 160cm

I have done some thinking and if my plant grows to 65cm then it won't work.

Do you guys use really tall spaces or train the plants to remain low? If so what technique and what do they grow to in height?

I know I need 18'' between light and canopy.


Grow Lab tent 60x60x160cm / 2x2x5'4


135w QB DIY set up or 150w mini-max hps/mh -- let me know thoughts please


125mm KSA acoustic box fan with temp controller and speed controller

150mm rhino pro carbon filter


Not sure on what pot size I should use. Was thinking of doing one big auto to begin with.

My thinking is

27cm for pot
65cm plant
45cm from light and canopy
5cm QB
10cm space between light and fan/filter
30cm fan filter

Total: 182cm and that's with small plant
How do you do it if you have lower height?

Sorry to write it out like this but I can't mess it up and want to start in early march. Any help is greatly appreciated as I am determined to use QBs.

Click to expand...

The 135w QB setup will serve you far better than a 150w, or even 250w HPS. As for your height issue - you could begin LST'ing the plants early on, or SCROG (or both). I see no reason that you shouldn't be able to use a 5 foot tall tent. You may want to put your ventilation and filtration (assuming you're planning to use such) outside the tent to gain more headroom.

Edit: FYI, those kits actually top out at around 150-160 watts at the wall. Many here recommend keeping it at 150w or less.

Budzbuddha said:

@robincnn - @Stephenj37826

When are the HLG 40s gonna show up again ... Looking to do a clone / seedling tray project .... Just askin.

And are you gonna stock citizens back plus heatsinks.... They kinda fell off the radar.
( I know there are other sources for cobs , but was asking if you plan to stock cobs again ).

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email us we will get you taken care of

2 QB304s sitting at 150W, one plant Scrog.

ChaosHunter said:

2 QB304s sitting at 150W, one plant Scrog.


View attachment 4081873 View attachment 4081874 View attachment 4081875 View attachment 4081876

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How you like those grow bags , I came across them and didn't realize how " aerated " they are compared to smart pots. Liked the Velcro side flap

Budzbuddha said:

How you like those grow bags , I came across them and didn't realize how " aerated " they are compared to smart pots. ?

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So much better than the fabric pots ! I do get roots coming out of the bottom and hanging into the riser catch. So far it doesn't seem to bother. Not to mention no salt buildup.

https://gardengearsupply.com/

ChaosHunter said:

So much better than the fabric pots ! I do get roots coming out of the bottom and hanging into the riser catch. So far it doesn't seem to bother. Not to mention no salt buildup.

https://gardengearsupply.com/

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I wonder how well they wick in a perlite SIP setup.

trying to make a "qb" with samsung F light strips. should this be wired in series or parallel?

Also, does distance from plant to LED matter as much as with HID (since heat with LED is lower)?

I dont recall the exact recommendations for light height distance but i recall seeing the numbers 12in and 24in and some numbers in between like 16in and 18in. Any suggestions?

Is it a good idea to drop the height to like 8 inches so theres "more light" for a segment of plants so i can increase the "wattage" per sqft and increase yield that way?

lastly. suggestions on drivers?

ChefKimbo said:

Hey guys, mag deficiencies are kicking my ass. How do you cope with soil grown plants?

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Crab Meal. It works because there is certainly no cal mag in the Jacks I use lol.

Been using epsom salt with limited improvement. Been dealing with temp swings too.

Low Ph from too much ph down might be the issue.

ChefKimbo said:

Been using epsom salt with limited improvement. Been dealing with temp swings too.

Low Ph from too much ph down might be the issue.

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Have you tried foliar feedings with the epsom. Yeah could be a ph issue, personally I never PH but my tap water is pretty decent.

higher self said:

Have you tried foliar feedings with the epsom. Yeah could be a ph issue, personally I never PH but my tap water is pretty decent.

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Next time I have a mag issue I am going to try a foliar spray for sure. Amended into dirt last time, had a good 3-4 day turn around on the issue. I know addressing plant issues sooner than later help out way more than waiting too long (not saying 3-4 days is long but it is quite a bit of time in terms of the plants life cycle).

ChefKimbo said:

Been using epsom salt with limited improvement. Been dealing with temp swings too.

Low Ph from too much ph down might be the issue.

Click to expand...

How much epsom per gallon of water? How low of PH? I am still learning but I have threads bookmarked that have shown me things I thought I had a decent understanding of into new knowledge.

A bi-weekly Espom Salts foliar feed is sufficient 1/4 teaspoon to 1 pint.

Kmag has replaced Epsom salts here. Been happy and it adds a K boost. Both work for boosting magnesium.

Just started using epsom foliar feed. Soil has lime and i sometimes top dress lightly with epsom. Plants are under 125 watts of Cree and Phillips Led bulbs, 5000k.

All plants in veg are showing some level mag deficiencies, some more than others. But 2 are showing signs of calcium deficiencies which is why I'm leaning towards ph issues. Its a particularly finicky sour purp type strain that I've been trying to dial in. Last time i ran that one barely made thru flower, but after a mere 1 week cure the taste was just magnificent.

hillbill said:

Kmag has replaced Epsom salts here. Been happy and it adds a K boost. Both work for boosting magnesium.

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With the last watering i hit two of my plants with some plain ph'ed water with a splash of fresh coconut water. I've read good things about coconut water being a good source of K and Mag for plants.

ChefKimbo said:

With the last watering i hit two of my plants with some plain ph'ed water with a splash of fresh coconut water. I've read good things about coconut water being a good source of K and Mag for plants.

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Molasses is a great potassium source that most are unaware of and I also have 30 lbs of slow burned oak ash for K and micros.