If you haven't seen this, it might be helpful. There is a diagram in there about fan placement.
There is a formula to calculate the CFM needed for your grow space. I can't remember if it is also at the above link, but if not, google can help. Just speaking from experience, I'd buy a 6" exhaust fan for your size tent. I have a 6" in my 4'x4'x8' tent. It runs about half speed, maybe a little more when I need it too.
Calculate the volume of your tent. You'll want to turn the air over 1-3 times per minute. You'll need to add about 10% for your grow light, and another 25% for your carbon filter (if you are using one). You'll also need to add more CFM for each 90 degree bend on your duct work.
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Is this an automatic reply? Sorry I think this is not the answer to my question.Originally posted by NebulaHaze View Post
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Hi, Nebu & sirius!Originally posted by NebulaHaze View Post
Where should the air circulation fans be positioned in the Tent exactly? How many would you take for a 90cmx90cmx180cm tent?
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golfnrl for regular seed it's very easy, you just let a male flower out near a female and let nature do her thing. Depending on genetics it will take 4-8 weeks for mature seed.
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Welcome aboard Froghunter. I have never grown plants to produce seeds, but Rwise has and does. He grows cannabis trees outdoors and is really good at it. You'll get the answer either from him or someone else. I'd also like to know the process.
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You wont get seeds without a male or forced male flowers, once the pollen is there and the flowers are impregnated it will take about 6 weeks to get ripe seed. Otherwise you'll be buying seed.
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NebulaHaze,
Hello.
This site is obviously mostly guided towards indoor growers and that is cool.
I am an outdoor casual grower (mostly unsuccessful) in the Aussie sub-tropics. Your website has been a mine of information and I thank you all for that. The past two years have been very good for me.
I wasn't sure if there was an appropriate forum so here is a random question, that I trust you will post to where I might get an answer.
I am almost out of seed. I left a few buds on the plant in hope. I don't think any real seed action is happening but the buds appear to be deteriorating rapidly. Any advice, PLEASE>
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Friends, can you tell me what kind of problem is nutrient deficiency? can you tell me my tap water is 0.2 EC? Can you tell me to what EC value do I need to add cal-mag? light Quantum Board 240W LED 15DLI 230PPFD pH 6.0 EC 0.7-0.8 fertilizers - Canna Aqua / BAC Cal-Mag 2.0 can you tell me how to make a solution
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Friends, can you tell me what kind of problem is nutrient deficiency? can you tell me my tap water is 0.2 EC? Can you tell me to what EC value do I need to add cal-mag? light Quantum Board 240W LED 15DLI 230PPFD pH 6.0 EC 0.7-0.8 fertilizers - Canna Aqua / BAC Cal-Mag 2.0 can you tell me how to make a solution
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More info needed. What's your medium, send a pic of your plant.
I topically use it about every second feed through veg and up to about 3 weeks after flip. But it varies depending on the strain and how they're going.
I use at most about 10ml to 15ml per 10 litresLast edited by Bluey; 05-11-2025, 07:35 AM.
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More info needed. What's your medium, send a pic of your plant.
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!!! Friends, can you tell me up to what EC values do I need to add Cal-Mag? !!!!
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Yes it's flowering
Looks right for an auto
Small pot, short auto (genetics), need much more info.
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