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Old 10-15-2009, 09:31 AM
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Default Grow Cab Humidity Problems
Hello everyone, Newbie here! Just had a quick question about my humidity in my Cabinet. I cant seem to get it to go above 20%. I put cups of water in there hoping the light would evaporate it but it still stayed at 20%. This is my third grow but my first indoors. Any help would be much appreciated. Thanks in advance.
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Old 10-16-2009, 02:29 PM
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Best thing you can do is step up the watts as the plants grow bigger. Big plants transpire lots of water so it won't be as much of a problem later on. Get you some small floros or a humidity dome.
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Old 10-16-2009, 08:14 PM
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Thanks muffy, i planned on getting some 65w cfls but wasn't sure if that would be overkill. I have a 150w cfl (300w equivilent) in there right now!
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Old 10-16-2009, 09:27 PM
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There is no such thing as overkill when dealing with CFL's my friend
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Old 10-16-2009, 10:12 PM
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Look into a cheap humidifier. I deal with low humidity myself and I picked up one on ebay for a few bucks.
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Old 10-17-2009, 07:05 PM
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Thanks for the input guys, i think im going to upgrade the light i have in there to a 150w HPS. I dont like the growth speed with the 150w CFL. I'm at about 2 1/2 - 3 weeks from sprout and there only about 2 inches tall on and their 3rd set of leaves. I looked at your grow (sicksadlittleworld) and was very impressed. Your plants have way more foliage on them at 26 days then mine at about 20 days. Ill post pics! What could I be doing wrong???
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Old 10-17-2009, 07:32 PM
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Originally Posted by jimjim0928 View Post
Thanks for the input guys, i think im going to upgrade the light i have in there to a 150w HPS. I dont like the growth speed with the 150w CFL. I'm at about 2 1/2 - 3 weeks from sprout and there only about 2 inches tall on and their 3rd set of leaves. I looked at your grow (sicksadlittleworld) and was very impressed. Your plants have way more foliage on them at 26 days then mine at about 20 days. Ill post pics! What could I be doing wrong???
Thanks. You really are better off with a bunch of smaller CFL's spread all over the plants instead of one big one. You need to get the bulbs within inches of the plants in order for them to put out enough light to be effective.

It also looks like it is a 2700K bulb which is better for flowering. You will probably get faster growth with 6500k daylight bulbs instead. Alternatively, the 150w HPS you are thinking about would go great in that cabinet. It looks to be the perfect size for a low wattage light and you'll get much better coverage/penetration than what you get with the CFL now.

Your plants don't look unhealthy or stretchy, so get some more light closer and I think you will see them take off. What kind of soil are you using?
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Old 10-17-2009, 10:13 PM
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Im using 75% miracle grow potting soil and 25% miracle grow perlite! I just ordered a sun systems 150w hps off of ebay for $85 shipped. I hope it works out. Lol. Now am i going to have to use a different light for flowering or can i use the hps straight through? Also how hot does that light get? I have two comp. fans for ventilation,the top one is exhaust and the bottom being the intake. My cab is only 21" wide by 14 1/2" deep and 2'2" tall. The bottom is the same just 4" taller. I plan to veg up top until the plants are about 8 to 10 inches tall and go into flowering on the bottom and keep the cycle going!
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Old 10-17-2009, 10:48 PM
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Originally Posted by jimjim0928 View Post
Im using 75% miracle grow potting soil and 25% miracle grow perlite! I just ordered a sun systems 150w hps off of ebay for $85 shipped. I hope it works out. Lol. Now am i going to have to use a different light for flowering or can i use the hps straight through? Also how hot does that light get? I have two comp. fans for ventilation,the top one is exhaust and the bottom being the intake. My cab is only 21" wide by 14 1/2" deep and 2'2" tall. The bottom is the same just 4" taller. I plan to veg up top until the plants are about 8 to 10 inches tall and go into flowering on the bottom and keep the cycle going!
I don't have experience with MG stuff but it doesn't seem to be an ideal soil for cannabis. I'm sure a transplant into some Fox Farm Ocean Forest or other higher quality soil will help with growth and prevent overnute problems later on.

Good choice on the light. You are working with about the same cubic footage I am, so the light should work well in that space. Just make sure you have adequate ventilation. HPS is ideal for flowering but it can be used for vegging. My plants were all vegged with the HPS.
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Old 10-18-2009, 03:27 PM
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I had two other grows with mg, they were lemon skunks, outside.They both turned out pretty good, but I'm still going to take a ride to the hydro shop and get some soil and nutes. It cant hurt to try. I want max production!!!!
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