250w HPS Club And Help Guide

AP2K said:
Sup 250ers? Setting up my tent as we speak.

Tent is 2 x 3 x 6. The light came with a 19" long cooltube. My question is, how much ventilation will I need? Will I really need to run ducting on either side of the tube and out of each end of the tent? Fans?

If it matters, the tent is in a bedroom that is AC cooled to 78F all day long. Really need any opinions, thanks.
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If your set-up isn't sealed then you must consider the condition of your intake air to determine the amount of ventilation needed. We have thousands on air cooled set-ups, only to set-up an $800 4K roomed that nearly yielded two pounds more than the over thought, five times as expensive room.
 
I85BLAX said:
If your set-up isn't sealed then you must consider the condition of your intake air to determine the amount of ventilation needed. We have thousands on air cooled set-ups, only to set-up an $800 4K roomed that nearly yielded two pounds more than the over thought, five times as expensive room.
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Crazy, and interesting. Thanks for your replies. Well my tent is completely sealable, if that's your question. If you were referring to the cool tube, it's open ended, as I assume most are, so I'm wondering if I actually need to duct it out each end of the tent or not.

My tent is in a AC controlled room, and I do have fans, just not inline ones with the aluminum ducting yet.
 
I am hearing some mixed things on neem oil to fix my mite issue. Some say it doesn't do enough and I need some (pyrethium?) too. My understanding is if you use the neem oil it doesn't necessaryily kill the mite, but messes up there physiology causing them to not breed, and young to not molt. So with this in mind if I continue to treat with neem every other day for 3 weeks should this break the life cycle enough to eradicate them?
 
As a noob, I only have one year of indoor grow experience. While I had a double bucket of problems last year, I managed to grow some decent buds. I learned about flushing from reading Jorge Ceravantes materials. I harvested a couple of plants (small ones) trimmed and hung up to dry(no flush). When the rest of my plants were a few day before harvest, I flushed with water that equaled 3 X the volume of the containers. After draining well, they went back into the tent. I gave no more water and put them in complete dark after about 4 days, then harvested. After all was dried and cured, the flushed plants smoked smooth and even, the ash was silver gray and fine and the taste was sweet. The plant harvested without flushing has a bitter flavor, does not burn well (pipe or papers) it crackles when being lit/toked and the ash is black and not completely burnt (course). It will get you stoned but the flush buds are ever so much more delecious. IMHO, flushing before harvest is a very good thing. I also think it is good to flush beteen veg and bloom if you have elevated the Nitrogen during Veg. My soil tested low on N so I didn't flush between Veg/Bloom.
 
@10acjed...Being a noob to inside grows, my opinion isn't of much value, but I will repeat what I read. It is good to shut down the water in the final 4-5 days and put the plants in total darkness for the same period of time.(from Jorge Cerevantes books/materials) You have some lovely buds there. I don't think you could do much to "mess them up" at this point. I would be glad to help recycle any buds that you might mess up...lol
 
AP2K said:
Sup 250ers? Setting up my tent as we speak.

Tent is 2 x 3 x 6. The light came with a 19" long cooltube. My question is, how much ventilation will I need? Will I really need to run ducting on either side of the tube and out of each end of the tent? Fans?

If it matters, the tent is in a bedroom that is AC cooled to 78F all day long. Really need any opinions, thanks.
Click to expand...
Your space is a bit bigger than mine but I run http://www.hydrofarm.com/product.php?itemid=8095 this active air 4in 165cfm with carbon filtration. My grow box is in an office/spare bedroom. With my room at ideal temps of 68-74, my grow box keeps around 76-84 with the lights on. When temps in my room got to around 80 degrees earlier in the summer, my box temps soared over 90.

I should have went with the 6in fan and still might reconfigure before next summer.

Edit: If you use the cool tube my understanding is that if you vent the intake from outside the tent you will not ventilate the air inside your tent as the air will be pulled from the outside, through the cool tube and out the vent fan. You could ideally get a large enough cfm fan and use a y-duct and run one for your cool tube and one to vent the tent w/carbon filtration maybe.
 
stoneslacker said:
Your space is a bit bigger than mine but I run http://www.hydrofarm.com/product.php?itemid=8095 this active air 4in 165cfm with carbon filtration. My grow box is in an office/spare bedroom. With my room at ideal temps of 68-74, my grow box keeps around 76-84 with the lights on. When temps in my room got to around 80 degrees earlier in the summer, my box temps soared over 90.

I should have went with the 6in fan and still might reconfigure before next summer.

Edit: If you use the cool tube my understanding is that if you vent the intake from outside the tent you will not ventilate the air inside your tent as the air will be pulled from the outside, through the cool tube and out the vent fan. You could ideally get a large enough cfm fan and use a y-duct and run one for your cool tube and one to vent the tent w/carbon filtration maybe.
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Excellent idea.
 
stoneslacker said:
I am hearing some mixed things on neem oil to fix my mite issue. Some say it doesn't do enough and I need some (pyrethium?) too. My understanding is if you use the neem oil it doesn't necessaryily kill the mite, but messes up there physiology causing them to not breed, and young to not molt. So with this in mind if I continue to treat with neem every other day for 3 weeks should this break the life cycle enough to eradicate them?
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I have been dealing with gnats. I first sprayed Aza-Max, then removed all plants, saucers and wiped down with lysol. Sprayed the bottom and inside walls with Aza-max. I think it was cdtbudz that suggested that I treat the soil with NEEM oil (2 tbs/Gal H20), cause gnats lay eggs about 1-1.5" inches in the soil. I followed the suggestion and havent seen the first gnat since. I also hung a hot shot no pest strip( I heard they work pretty well). Good luck!
 
Dr. Kundilini said:
@10acjed...Being a noob to inside grows, my opinion isn't of much value, but I will repeat what I read. It is good to shut down the water in the final 4-5 days and put the plants in total darkness for the same period of time.(from Jorge Cerevantes books/materials) You have some lovely buds there. I don't think you could do much to "mess them up" at this point. I would be glad to help recycle any buds that you might mess up...lol
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Thanks. There was a thread the other day that went back n forth about it.. Got ugly lol...

I am just going with the learn as I grow technique, trying something different each time. However I doubt I will ever feed nutes right til the end, just would rather do a couple str8 waters, minor flush. But I will try that way with my next grow.

I read about the total darkness. However if you cant for whatever reason, dif strains etc, is it ok to just not water them for the last 4 - 5 days and clip?
 
stoneslacker said:
How many plants are you running? Have you thought about a 12/12 from seed SOG. This would help with your root space and overall space too. I think with the gallon bottles you should be able to get them packed together pretty close. Looking forward to it and I will check you out at your GJ. Peace
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Hey man I put 15 seeds in jiffy pellets and 14 sprouted up. I have 3 PPP feminized and 4 Papaya regs from Nirvana. I also have 5 that are from a bag of some fruity tasting mids and 2 that are totally random bag seeds. My girl will be growing a few out under some cfls and the rest are mine under the 250. My original plan was 12/12l from seed with this grow. But I've done that before and I decided that it would benefit the plant, and the yield, if the plants had even the shortest veg time. Just enough to get them out of that "seedling" stage. I feel like the growth spurt from flowering is wasted on the plant simply establishing itself when 12/12 from seed, but by letting the plant do that under 18/6 maybe I could get a little more bud in the end. And because roots stop developing in mid-flower, I though this would help get more root mass. Once I decided to give the plants a week or two of veg, I got the idea to do the main-lining thing on this grow. I just have the main-line itch and don't want to wait another entire grow out before I try it. Since I'm already rambling I guess I can put all my thoughts in this post*. Besides, I feel like you, stoneslacker, actually listen to what I'm saying and give me good feed back. The 250w thread is one of my favorites because all you guys take the time to help each other out here. BTW where is grazz? Anyways. Another thought behind the mainline idea is that single cola plants, like the ones you see in 12/12 from seed, can be up to 18 inches tall. My little 250 doesn't get much light to the bottom of the cola. So if I take that 18 inch cola and split it to 4, 4"5" colas per plant, more of the bud will be closer to the light and maybe get fatter. Maybe more yield or better bud? Just ideas, but it's kind of the same concept as a ScrOG. I've posted my idea in a few spots on the site and really I've decided the plants will decide for me. As the days pass and they get taller, I will either walk in there and grab the snips and take off every one's head, or I will reach up and take 6 hours off the timer. I want a problem free grow with a respectable yield and some tasty buds. A lot of single cola plants come in at 7-10 grams a piece. I'm looking for 20 per plant. I know I won't get a gram per watt but I need to harvest at least 5 ounces here or I can't really justify the amount of money I have spent on this hobby of mine anymore.
 
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