The Beginning Has Begun

If you put that 6" on your intake you would create positive air pressure in your tent, you don't want. You want a negative pressure in your tent so all the air flowing out will go through your filter.

Basically, you would have more air coming in than going out, which creates a positive air pressure. All that air will find anyway it can to escape, like through the seams, any hole that air will fit through. Then your whole house would smell like marijuana, and that's not good. Just keep more air going out than coming in if your going to put in a forced intake.
 
Right let me get this straight. If I was using a 6" intake,my 4" out take wouldn't cope. I get that bit,so say I Just got another "4 fan to draw air in,would my current 4" fan/filter cope with that?
Also got a bit of yellow on both leaves of 1 of my babies. Do you know what that could be?its only on 1 of them. I will put a pic up,
Cheeers.
 
image13145.jpg
here's the little one that has some issues
 
Soil ph/EC maybe? Each plant could have different hunger for nutrients also. Could be a lot of things but it seems to me it's nute burn.
Your soil also seems to be a littlebit dry...maybe root damage coz of the lack of water.
Also...that plant is about to be rdy for repotting. The taproot is probably reached the bottom. It's already growing the second set of leaves. Let her grow:P
Hope that helps
 
Hey dusty,

I've been out of town and am getting caught up today :)

I'll pitch in some ideas and thoughts. First, I would consider moving all of the ventilation equipment outside the tent.
passive air in-->[TENT]-~~-DUCT-~~->[FAN]->[FILTER]---->room.

That configuration will provide maximum space inside the tent and remove the warm fan motor from the environment equation.
Note: Be mindful of the first time you reverse airflow through the carbon filter. You may get a decent puff of carbon dust as particles of carbon shift and settle.

A 6" fan is a lot of fan for that space. I envision the sides of the tent sucking in >.< Before you purchase a 6" inline fan compare the cost of a cooltube reflector for the HPS lamp. Is there such a thing as a 4" cooltube? Might a 6in to 4in reducer work if not? Answer unclear, try again later.

You can run the HPS for the entire grow. It may not be super-duper optimal but it will work fine.. If you can afford the extra cost of heat you could add a couple 6500K CFL bulbs for a few weeks to supplement the blue light spectrum during veg.

The twin seedling I'm not sure how to handle, lol. Perhaps treat it like a clone. In a few weeks time cull the weaker twin and see if it will take root on it's own? Trying to divide the roots, if possible, could prove deadly for both plants.

Your 10.5L to 11L pots are probably about as big as you're going to be able to go, which is fine. You only have so much headroom to work with. Keep the canopy low and level.

You've got nice gear. It would be nice to try to work with what you've got. A creative tweak here and there may be all you need to get everything into the green zone :)

/Obi
 
It could.

Nute burn is an educated guess and I use that term very loosely. It doesn't appear actionable at the moment.

It may be due to a number of things. Slightly different pheno type, faster root growth hitting nutes quicker, the volume of water the plant is taking up. I had three distinct pheno's in my ten seed grow. I learned early on that even though I was attempting to grow ten of the same plant, their needs were diverging noticeably after about ten to fourteen days in.

I would simply keep an eye on the leaf tips for now.

/Obi
 
dustypropcrop said:
Great to hear from you obi! So what Do you think about the re-potting? As my little babies are only a week old today I thought this was early days?
Click to expand...

I agree with Highfly. The taproot(s) have likely reached the bottom of your cups by now. Additionally, you'll have your third set of leaves soon. They appear to be well on their way to being established and healthy enough for transplant. You could go another week. Anytime between now and then would be groovy I think.

/Obi
 
Brilliant guys. I'm still pretty confident things are gona be alrigth! Right now I'm giving my plants the same amount of water,40-50ml every 2 days and a light spray on the top of the soil to keep it moist. D'you know anything about the bio bizz range of nutes? I picked up a trial pack,it consists of 3 different bottles. Bio-grow,bio-bloom and bio top-max. There is no guidelines on the bottles?
 
I think that size container is fine for that tent. To go larger will require less plants. I see two options: A many plant SOG or single plant SCrOG. I would simply run the five plant SOG for this grow. I planned on losing a plant or two due to my mistakes along the way, which I did. Hopefully you don't lose any! You can always take what you learn from this grow and scale your next grow up a notch or two.

First grow keep it simple. You have a good plan in action. Closely monitor the basics:
  • Maximum canopy temperature
  • Minimum canopy temperature
  • Relative Humidity RH%
  • Water/Nutrient pH
  • Run off pH

/Obi
:Namaste:
 
Spot on with the nute burn! That's exactly what I was thinking.

But it is time to repot in the next few days, just don't wait to long.

And dusty, if your going with a forced intake then as long as your intake fan moves equal amount of air or less than your exhaust fan you would be alright. And obi is right, a 6" is a lot of fan for a tent.

As far as the cool tube, I haven't seen a 4". It would probably be to hard to get the bulb in lol. Just stick a 6" to 4" reducer on it and you would be golden. Just don't pull the hot air off the light through your fan, they have thermal protectors and the heat may damage it.
 
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