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Sour diesel in a 250w vert, fytocell hempy air pot stealth micro grow

Eol

Member
**Edit**

The following grow turned out to be all males, if you wish to read about the cab construction etc then read on. If you wish to skip to the current grow use these links:

Couple of weeks vegging
Three females, kept two, vert scrog screen in
Day 5 of flower, starting to stretch!

The Grow Cab

I'll show you my cab first, it's a small cupboard, dimensions are: 27"x31"x23" (HWD). I live in smallish flat so having a growdrobe would unfortunately be too conspicuous. I added some wheels to it and it's proved to be a good move. I can now move the cab into my flatmate's room if relatives come round and it allows me to have passive intakes on the floor, making it more stealthy, as there's not a load of massive holes in the back. I light proofed it with some black acoustic foam, which actually worked really well.

There are four 5" passive intakes, air is then extracted out into a carbon filter via a S&P TD 150 on the low (106 cfm) setting. Lighting just now is a 150w blue cfl. I have a 250w cmh on it's way and I plan on hanging it vertically, hopefully without the cooltube, in a vertical scrog, as you can see below:

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Air is extracted out into a 5 inch rhino carbon filter sits on top in a plastic tote as you can see in these pics:

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In terms of noise, it's like a hum that you can only hear as you get closer to it. The fan is silent (19db), it's just the movement of the air. Once my pc veg case is running it should cover the noise adequately. I'm also going to try it with some acoustic ducting when I get some more cash, though it might take up too much room with all the insulation. A temperature monitoring fan controller is on the want to buy list too!

Hydroponic System

I'll be using fytocell as my media. After seeing some impressive grows with in on another forum, I decided to give it a go. If you want some more information on it, have a read of this.

For pots I will be using air pots that I have modifed, hempy style. The advantage of using air pots is that they have holes throughout the container, thus providing continual air pruning for the roots. Hopefully this, combined with excellent growth seen in fytocell, will produce some explosive growth!

Here is how I modified the air pots so they can be used as hempy buckets. It's really simple - all you need are some cable ties and black bin bags.

I cut out a circular piece of bin bag, and used the cable tie to make it into a base (I also used the base that comes with the air pots, just to take some of the weight of the medium off the bin bag). The holes above the bin bag thus become the drainage holes.

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And here it is filled with water, working nicely =)

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The Grow

I plan on topping and then flowering the tops. I will then train the females into a vertical circular scrog screen around a 250w cmh (which should be arriving in a week or so), with a hps to flower, as shown above. Temps are about 70F with the 150w CFL and humidity at about 50%. I will run the HID lights at night to help with temps, and hopefully will thus be able to go bare bulb.

**Note** the following grow turned out to be pure males, to see the current grow, click click here

The Plants


I've got five sour diesel babies going and I'm on the hunt for a good mother, which I plan on keeping in a PC case which will act as a veg/cloning area. I also plan on keeping a male so I can collect some pollen and create some seeds, as they're so damn expensive to buy! I quite fancy trying some breeding at some point too, but not for a while yet. It will be tricky keeping a male in such a micro environment, but I'll handle that obstacle when the time comes.

I stunted their growth early on by letting the water level in a bubbler tub get too low, causing their roots to dry out =(. I also went away for 5 days and when I got back they were in desperate need of a feed. They perked up though after a splash of floranova grow, here's what they looked like last week. (Two took far longer to recover and were so kept in the bubbler to encourage further root growth).

07/05/2011

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15/05/2011

Here they are as of today - the three that had recovered first have really taken off and are showing excellent healthy growth. They're currently on 600ppm of floranova grow.

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Here are the two that were slower to bounce back. Both have shown good growth as well now. One is showing some transplant shock, so I have given it a feed with some superthrive + a splash of rhizotonic and so it should perk up soon.

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I need to get some more hydroton to cover the fytocell as algae will grow on it. Here's how the cab looks as a whole, it's a bit crowded - roll on the time that I can flower the tops and chuck the males!

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Can't wait till the 250w cmh arrives!

Hope yous enjoy the grow, comments and criticisms are welcome!
 

elemtee

Member
well dam. im in on this one Eol.

nice work bro. innovative air pot mod. fytocell had me interested by the name alone. should be interesting. :joint:
 

Eol

Member
Cheers elemtee!

19/05/2011

The three larger plants' roots have definitely hit the rez at the bottom now as they're growing really fast. The other two are still displaying signs of transplant shock (one pretty severely). They've both shown growth though, so hopefully it should be sorted soon! I've bumped the big three up to 650ppm and the smaller two up to 500ppm.

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I need some advice regarding topping. I was planning on topping so I could flower the top to sex the plant, and then I'd have four main colas to train into the screen (if the plant is a female). However, as you can sort of see, the lower fan leaves are far less developed, probably from where their growth was stunted early on. As such, if I did top for four colas (which involves topping between the second and third node), I'd lose so much of the plant that it'd take a good two weeks i'd say to bounce back.

So what do yous think, should I just let them grow out and flower a side shoot when the time comes? Or top and flower the top? Is topping even necessary if growing into a vertical scrog screen?

Thanks!
 

Eol

Member
My 250w cmh arrived on thursday, so got that setup in the cab =D. I've done some LSTing on the larger plants because a) i'll be training them horizontally into the scrog screen and b) promote side shoot growth so I can take some clones and flower them to sex the plants as soon as possible.

The smaller one still isn't looking particularly healthy. I'm beginning to wonder if it's a runt or something =S - will keep with it anyway, hopefully it'll pick up!

Temps are in the high 70s now, so all's good!

21/05/2011

Before the lst:
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After:

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Can see the side shoots coming up nicely on the larger ones =)

Hope yous have had a good weekend, cheers!
 

Eol

Member
Time for an update - the plants have totally exploded, the three larger ones have taken over the cab. I need to sex them asap, but having trouble interpreting the preflowers. I have a magnifying glass on the way, so this should help. I also made a post about it to get some expert advice, here:

https://www.icmag.com/ic/showthread.php?t=213735

The people who've replied generally agree that out of the three larger plants, two are girls! yippee! With the scrog screen in place, there's only room for two pots - so once their sex is a 100% confirmed I am going to chuck the remaining three plants (going to take a cutting of the male to flower and collect pollen from). Should have the scrog screen in by the end of the week =)

Anyway on to the pictures. The runt has finally started growing - after asking about it on another forum, I found the likely reason for its slow growth was that I was watering it too vigorously, so the fytocell around it was constantly being dislodged, preventing the roots from forming a proper base. I'm not sure if this an issue unique to fytocell, or all types of passive hydro - but to anyone in a similar circumstances as me, be careful!

Here are (hopefully) the two girls:

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Here is the male and the other slow grower at the back, which has actually had a growth spurt (gonna chuck it anyway if the other two are definitely females)

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Here is the runt, getting bullied out of the light by the male beside it!

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Here is the cab as a whole, getting pretty crowded =/

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Next update should have the scrog screen in if all goes to plan =)

Cheers!
 

Eol

Member
So it turned out my four biggest plants were male =( - such bad luck, I am so gutted! all I wanted was one female =( - I have two viable seeds left (two were duds and a killed one seedling) and the runt. I just hope one of those turns out to be a female as I really can't afford to splash out $130 bucks on a new pack.

I took some cuttings off one of the males so I can try and collect some pollen later.

Here is one of the males, before the chop

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Here you can see its roots spilling out the air holes

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Here's what the base looked like

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Here you can see the air pruning, it's kind of hard to make out but it's the white fuzziness you can see around some of the roots.

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And lastly, here's the runt - hopefully now it's not competing so much for light it'll bounce back some more - though it doesn't look particularly happy =(

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Cheers
 

DnKNg5

Member
Sucks about the males! How long did you veg before you sexed them and how long after the switch did they show? Good luck on the last little (hopefully) gal. The little plant that could! Chugga-Chugga Cho-Chooo!!
 

Eol

Member
Cheers guys - DnKNg5 they were vegged for about 4-5 weeks, so by that time there were clear preflowers showing.
 
i luv your grow, ive been waiting for someone to sensibally run a cfl this size vertical circular, in other way and u def waste a shit tone of the bulbs power. looking foreward to seeing your yeild.
 

Eol

Member
Thanks for the kind words =)

IwannatokeNbone, I actually switched to a 250w cmh, so I didn't stick with a CFL the entire grow. Though I do agree with your point, vert has its benefits regardless of the type of light!

Another of my seeds was a dud, so that brings my total up to four males and three duds - so unlucky!

I can barely afford it but I bought a new pack of sour diesel today, going to germ 5 to go with the final seed from the first pack which has just popped. Going to veg them in a bubbler, then transfer them to 1 litre hempy air pots till they show some preflowers - fingers crossed I'll get some females this time!

I'm also going to kill the runt as it's showed no sign of vigorous growth at all.

Cheers
 

Eol

Member
Thanks for the kind words =)

IwannatokeNbone, I actually switched to a 250w cmh, so I didn't stick with a CFL the entire grow. Though I do agree with your point, vert has its benefits regardless of the type of light!

Another of my seeds was a dud, so that brings my total up to four males and three duds - so unlucky!

I can barely afford it but I bought a new pack of sour diesel today, going to germ 5 to go with the final seed from the first pack which has just popped. Going to veg them in a bubbler, then transfer them to 1 litre hempy air pots till they show some preflowers - fingers crossed I'll get some females this time!

I'm also going to kill the runt as it's showed no sign of vigorous growth at all.

Cheers
 

stihgnobevoli

Active member
Veteran
nice grow so far, hope the rest turn female.

don't wanna tell you how to do your shit, but im sure that white fuzzy stuff is most likely the mychorrizae you added, the brown tips on the roots is the air pruning.

also i would keep the runt, hope you didnt kill it yet. also grow bagseeds they will save you a fortune, and the bonus is you get to name it.
 

Eol

Member
Ok time for an update - out of my new pack of sour diesel ibls, I got 6/7 germination and vegged them for a week in a small dwc bubbler. I then transplanted them into one litre fytocell hempy air pots for about six days before finally transplanting them into the 3.5 litre hempy air pots, as I was going out of town and needed the larger reservoir to tide me over whilst I was away.

I'm currently waiting for them to show sex, it's been about 3-4 weeks now so some preflowers should be popping up soon, had a good look today but found none whatsoever. Hopefully it wont be too much longer as it's getting pretty crowded.

I also downgraded to a 150w blue cfl for now, as the plants are so close to the light the 250w barebulb would have burned them pretty bad.

Here they are in the 1 litre hempy air pots:

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I was really impressed with their root growth in the 1 litre hempies. They were transplanted from dwc after their roots were just poking out the bottom of the rockwool cubes. This growth is after only six days in fytocell, pretty impressive imo!

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Here they are in the bigger 3.5 litre pots:

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And here they are ten days later:

05/07/2011

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Cross your fingers for some females this time!

Cheers =)
 

Eol

Member
Cheeky update! I ended up putting the 250w cmh back in there, and the plants loved it - the difference in growth between it and the 150w cfl were understandably massive! The only issue was that the plants were growing into the light and fan leaves were getting burnt all over the place. As such, I decided to put a chicken wire screen in - not to scrog (as i'm still unsure of sex), just to prevent their leaves getting too close and thus burnt.

They're currently on 650-700ppm of floranova grow =)

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Still no sign of any preflowers! Had a good look again today, fourth + fifth node, peeled back the stipules but there's nothing there!

Peace!
 

Eol

Member
Okay, update time! All the plants finally showed sex, got three males and three females - yipee!

Took them a while to show though - about 30 days for the males and 37 for the females. As such the cab got totally overgrown, here's how it was looking:

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Here's the male I've decided to take some cuttings off to harvest some pollen. Grew significantly larger than the rest and appears to have a decent aroma as well. Hopefully it's got some good genes inside it! Please excuse the burning, it got so big I couldn't stop it growing into the light, even with the screen =S

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Here are the three females. I only have room to flower two, so I decided to keep the two on the right for no reason other than they were bigger. Their pots were also heavier, so I took this to mean that they had a larger root mass.

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Here are the two girls I'm keeping:

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Here's the scrog screen in place and the first plant weaved in:

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And the second plant weaved in. I also stripped off the extra vegetation that didn't reach the screen. Maybe I should have done this over the course of a couple of days to not stress the plants, but I did it in a one-er. Ah well. The bulb was just powering on, hence the cool colour.

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Here's a picture of them this morning. And yep, my cloning station is one top of the pot of another plant =P - us micro growers gotta make the most of our limited space!

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And finally a shot from above:

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I'll probably give them a week or two to fill the screen out more, then flip them. I'm planning to train the main stems round the middle of the screen, in opposite directions so they meet at the far side. The side branches will be trained above and under the main stems, to fill up the vertical part of the screen.

Cheers!
 

GoozMan

Member
Looks like things are really moving now, good luck. Congrats on a balanced mix of males-females and a good seed run. I feel your pain, my first vert 250 run not too long ago ended in a shed full of nutsacks, its especially depressing that males grow so strong and fast. I finally got some females going and they're doing great, I'm kinda wishing I had done a little more pruning and training, vert lighting promotes growth EVERYWHERE, I've got a lot of popcorn to deal with this time. I can't tell, have you already topped? And good call on the poultry fencing, I'm using the same stuff and its great for bare bulb 250s, a few of my buds grow through the screen but they're fine, actually I'm amazed at how close these plants can get without getting damaged (or at least too damaged :).

Again best of luck to you, I'll be following along as we have pretty similar grows.
 

Eol

Member
Yeh man a pack full of boys is heartbreaking, especially when it's 180 bucks a pack >.<

I have come across your grow before over in the vert section - very impressive! I love the way you've condensed a heath robinson style setup to fit into a cab - so innovative!

I considered topping them but never did in the end, as it slows down the formation of preflowers and as you can see from the first pic, I need them to show sex asap!

Yeah I've found vert promotes so much more side branching and the cmh produces such dense foliage that i'm gonna need to do some heavy trimming when the time comes! Want to get as much light to the bud sites as poss =)

You were right regarding the airflow, all intakes have pretty thick carbon pads on them (to stop light leaks + filter the air) so I thought this would limit the intakes enough to warrant having four. However, I started to detect the sweet veg smell in my room, so I covered up the fourth and am just going with three now =)

Cheers for stopping by, I'll be keeping an eye on yours too! :wave:
 
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