2x 1000w HPS grow or not?

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DarkLordMelkor

Well-Known Member
Hello.

I am going to grow photos in 5x5x7 grow tent with one 1k HPS but worried about yields. Last time i ran for 4 autoflower plants under 1k HPS and got 400 grams dry. This is not satisfying result for me. I want to go over 1000 grams. But that's looks harder to get under 1k HPS. Even for photos. Or not?

2x 1000w and it's easy to go over 1000 grams but that could bring me anohter problems (CO2 supplement etc). Or not?

Anohter solution is keeping them in veg stage more than 4 weeks (ie 6 to 8 weeks) under 1k HPS. But that's anohter risk for damaging plant (nutrient issues etc).

I don't know what to do actually. That's gonna be my first photo grow. Any ideas?
 
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OldMedUser

OldMedUser

Well-Known Member
DarkLordMelkor said:
Hello.

I am going to grow photos in 2x2x7 grow tent with one 1k HPS but worried about yields. Last time i ran for 4 autoflower plants under 1k HPS and got 400 grams dry. This is not satisfying result for me. I want to go over 1000 grams. But that's looks harder to get under 1k HPS. Even for photos. Or not?

2x 1000w and it's easy to go over 1000 grams but that could bring me anohter problems (CO2 supplement etc). Or not?

Anohter solution is keeping them in veg stage more than 4 weeks (ie 6 to 8 weeks) under 1k HPS. But that's anohter risk for damaging plant (nutrient issues etc).

I don't know what to do actually. That's gonna be my first photo grow. Any ideas?
Click to expand...
That's a pretty small tent for even 1 - 1000W HPS. Lights like that should be spaced 5ft or more apart in a lot larger space. No way you're pulling a kg out of 4 square feet no matter how many lights you stuff in there.

I've been using 1000W lights to grow pot since '82 so do have a clue.

Check your fire insurance policy.

Good luck.

:peace:
 
coreywebster

coreywebster

Well-Known Member
I assume he means 2m x 2m

Edit , then again he said 2x 2x 7 and I'm sure it's not 7m high.

How in the fuck can you even fit a 1000w hps in a 2ft x 2ft tent???:confused: certainly couldn't get a 2nd one in..

Do they make 2ft tents 7ft high ???

Somethings not right here!
 
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DarkLordMelkor

Well-Known Member
coreywebster said:
Get away from autos.

Veg and scrog properly.
I'd probably stick with the 1000 in a good air cooled XL hood.
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Yeah i have scrog net and cooltube. Also have nice intake and exhaust fan and 6" fan for air circulation.

Autos was easy to grow but yield was sux. İt was my first grow and 400grams dry product not bad for first and autos. But i need better yields so thats why going for photos.

Gods Glue strain. 5 gal pots with 6 weeks veg then flip to 12/12. Lets see whats gonna be my final yield.
 
OldMedUser

OldMedUser

Well-Known Member
DarkLordMelkor said:
Sorry yall. I was high.

Tent is 5x5x7 feet (150 cm x 150 cm x 200 cm)
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The usable grow space in my room is pretty much 5x5 but the room is 7x8 so I have plenty of space to move plants around, situate fans etc.

A 1000W has enough light to cover a 5x5 damn near perfectly but hood designs don't spread it so that all areas of the space are equally lit.

Rather that run a 2nd light that will double your power costs invest in a Light Rail to make that one light do the work of two or enough to cover that space evenly. 2 x 600W HPS would be a better setup and the 600s are the most efficient in lumens/watt. I did the math on it a while back comparing the output for a 4x8' space I was going to build. Using Hortilux SHPS as the bulbs 2 - 600s gave 50% more light than the 1000 for only 20% more power input. My plan was to rig 2 of my 3 600 digitals back to back and hang them on my Light Rail 4.0 to cover the space well. Now I'm using the rail with one 600W to make it work as good as a 1000W. And it's motor only uses 9W so the rail has paid for itself twice over since I got it 6 or 7 years ago.

Made in CO, USofA too!

:peace:
 
amneziaHaze

amneziaHaze

Well-Known Member
DarkLordMelkor said:
Hello.

I am going to grow photos in 5x5x7 grow tent with one 1k HPS but worried about yields. Last time i ran for 4 autoflower plants under 1k HPS and got 400 grams dry. This is not satisfying result for me. I want to go over 1000 grams. But that's looks harder to get under 1k HPS. Even for photos. Or not?

2x 1000w and it's easy to go over 1000 grams but that could bring me anohter problems (CO2 supplement etc). Or not?

Anohter solution is keeping them in veg stage more than 4 weeks (ie 6 to 8 weeks) under 1k HPS. But that's anohter risk for damaging plant (nutrient issues etc).

I don't know what to do actually. That's gonna be my first photo grow. Any ideas?
Click to expand...
4plants with 4weeks veg 400g is not that bad.next time go more plants.hard to fill that big space with soo little plants soo fast.most of your light is shining on the ground
 
StareCase

StareCase

Well-Known Member
Greengrouch

Greengrouch

Well-Known Member
Just veg longer or grow more plants(sea of green style) you pretty much want most of the floor space covered with canopy before flipping to flower.

things that can go wrong in a crowded tent: PM, mold, bud rot these can be managed by keeping in tent humidity no higher than %50 through flower and having good airflow.
 
jimihendrix1

jimihendrix1

Well-Known Member
I use a 1000w Hortlux HPS in a 4 x 4 area, no tent though, an open room, and use a Katsu Sour Diesel IBL as the strain. Or 1 of the strains I use.

I bend plant(s) over, and dont mess with the growing tip. I also veg with the Hortilux 1000w HPS. I use it from seedling-finish. Though I grow clones, and know its a female.

I root in 32oz Uline Deli Cups, and a start bending them over early in life. When the roots about fill the Uline Deli Cups, I transplant into 20 gallon containers of Promix BX. I veg a total of 60 days, and routinely pull 18-22oz from 1 plant. You can also grow 2 plants with less veg time ( 40-45 days ) and get about the same yield. Maybe 24 oz. Ive done a best of 28oz. But everything has to be dialed in, and you have to have really good fresh air exchange. If you dont have alot of fresh air, expect to yield less accordingly.
But yield is strain dependent, plus growing style, how long you veg, and how much soil they have to grow in. More soil usually = more weed.

But as far as yield, it will be hard to beat the Katsu Sour Diesel IBL. Outside in 300 gallons of soil, and an early start, they get 8lbs per plant.

You could get more yield inside if you strategically topped the plant, BUT, you will have to veg it longer to make up where topping it slows it down for 10-15 days. So in the long run, the turn around favors just bending it over and making all the side branching into huge colas. Bending will turn the plant into a giant hedge, like a forsythia bush. 1 plant can totally fill up a 4 x 4 space, and use every ounce of the 20 gallons of soil. But its a faster turn around to use 2 plants and 2-3 weeks less veg time. Either way works.
But I highly recommend the Katsu Sour Diesel IBL for a fast growing, very potent high yielding strain.
 
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DarkLordMelkor

Well-Known Member
I fckd up something. I am not lucky about germinating seeds in past auto grows. So i used 5x fem gods glue photos and 2 free cbd strains bank sent me free. Guess what... 7 seeds germinated...

I can give up on cbd strains but i think 5 seedlings with scrog is too much in 5x5 tent?

I am not gonna top them. Also i dont want to give up on them.

So 5 is too much?
 
StareCase

StareCase

Well-Known Member
DarkLordMelkor said:
... i think 5 seedlings with scrog is too much in 5x5 tent? ... So 5 is too much? ...
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If it were my 5 x 5 ... I would do 4 plants with each plant spread out to 4 square feet (2' x 2'). That would give you 1 foot between the plants so you would have room to get to all of them for plant stuff like watering and lollipopping.
 
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