4 x 8 Tent | 1200W | 18 Site Aero / NFT

gumtree

Active Member

• Mar 10, 2015

• #1

My 4x8 tent and light kit arrived today so I'm starting a new journal for the grow. I aim to be up and running in about 2 weeks. After cramming 15+ plants and a similar system in a 4x4 tent I'm revising my method to better suit.

After searching high and low for square PVC tubing (no option but to import from O/S) I will settle for 6" round PVC pipe and 3" net pots. Each net pot will have one EZ clone sprayer below, pointing directly up. I'll run an inline filter so clogging shouldn't be an issue.

I plan to veg for one month under 2x 600W MH conversion bulbs supplied in kit. I will more than likely build a screen in the later half of veg, still deciding whether to SCROG or top a few times to get multiple main colas from each plant. My current thoughts are leaning towards the latter.

Ventilation will be a 12 inch duct fan with 10 inch duct to 10 inch carbon filter. The tent is in the garage which can get quite hot.The tent has 4x openings around the bottom with covers but unfortunately these do not have Velcro, I want to source air from another room so I will have to sew these shut before I continue.

Here's some teaser pics, will update with progress!

 

FamMan

Well-Known Member

• Mar 10, 2015

• #2

I'm a noob but looks amazing. I will be watching as I plan to do 8x4 tent with 2 600(aircooled and with soil though). Hope it all goes well!

 

gumtree

Active Member

• Apr 2, 2015

• #3

Things are going a little slower than anticipated, not to worry though as once things are up and running I should be producing a harvest every 2 months. After a little further thought and planning I will now run an 18/6 veg cycle in a 4x4 tent next to the 4x8.

The strain is called Critical Kush


2x 600W HPS & cooltube fittings


1x 600W MH, cooltube fitting, 6" fan, carbon filter


20 site aero system in veg tent


Close up of drainage, used what I had & works flawlessly. 50L res below to be changed weekly.


I topped most of the plants straight out of the aerocloner


Ideally the 4x8 tent will have 18x plants with 4 or so big colas each

 

Last edited: Apr 2, 2015

DirtyNerd

Well-Known Member

• Apr 2, 2015

• #4

Very nice bro subbed for the show

 

gumtree

Active Member

• Apr 2, 2015

• #5

Cheers man! So after a month of veg I should be able to lift the net pots from the veg tent into the flower tent. After this time the roots will have developed nicely, I'm thinking maybe a simple flood and drain during flowering is the way to go

 

Marla 420

Well-Known Member

• Apr 3, 2015

• #6

Looks awesome.

 

gumtree

Active Member

• May 1, 2015

• #7

The plants are now 4 weeks old. I would have preferred to complete veg under SCROG screen after about 2-3 weeks but had to take down the 4x8 tent for a rental inspection.

 

Last edited: May 1, 2015

RoDDin

Well-Known Member

• May 1, 2015

• #8

Subbing. Superb journal.

 

gumtree

Active Member

• May 1, 2015

• #9

I spent a good few hours constructing the 18 site system. The junction fittings purchased made for a bit of a tighter fit than anticipated but got it within the tent dimensions after a bit of manipulation. Watering method is flood & drain.


Plants moved in


I built the screen with some wire and conduit I had laying around, the stems were not very flexible which resulted in a lot of branches bending and some snapping completely. I fixed what I could with some tape and I am allowing an extra week of veg now to allow some recovery before flowering.


Screen in place


Close up

 

Mr.Goodtimes

Well-Known Member

• May 1, 2015

• #10

Subd, looking good.

 

gumtree

Active Member

• May 1, 2015

• #11

Cheers to all following, very excited about my second grow!

 

gumtree

Active Member

• May 10, 2015

• #12

This last week the plants have taken a turn for the worst, not sure if its due to toxicity or deficiency? Since placing in the Flood & drain the leaves have looked ever so droopy. I have not had much luck with flood & drain in the past, it always produces a similar result. I only water 3 times during the light, but the roots never completely dry. I also have an air pump in my res, and i see other people running similar system in a nft setup so not sure why the new growth look over watered always.

I am using tap water with low PPM

and the EC is now 0.8 after 5 weeks. lowering or raising doesn't seem to help the issue. new growth keeps looking shit and droopy.

added some calmag a week ago which hasn't seemed to help.

might scrap this grow it's really bringing me down... had a great start spent a month growing them up and now since changing watering method they have turned to shit.

I would appreciate any ideas regarding what could be the issue, thank you

 

Hot Diggity Sog

Well-Known Member

• May 10, 2015

• #13

Could it be not enough water? would your setup allow for the water to flow constantly?

 

Hot Diggity Sog

Well-Known Member

• May 10, 2015

• #14

Lets see a picture of the roots from one of the net pots.
Water temp and PH good?
How often is the rez being changed?

 

Hot Diggity Sog

Well-Known Member

• May 10, 2015

• #15

My novice eyes are seeing:

Nitrogen Defic.
Calcium Defic.

Possibly very thirsty.

 

gumtree

Active Member

• May 21, 2015

• #16

cheers man thanks so much for your advice, I kind of lost track of my plants for a week.. turnes out they were crying out for new nutes. plants have shot right back up now and switched to 12/12

 

gumtree

Active Member

• May 23, 2015

• #17

I think half of the tent is hermie/males

 

gumtree

Active Member

• May 23, 2015

• #18

this grow really isn't working out have wasted so much time and $$ pretty sure these are males