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My plants are five weeks into flowering. I started with 11 plants. Five were male, and six are female. I also have a couple plants in plastic cups i'm growing in 12/12 from seed to see how they do in cups. This is my first real grow. They seem to be doing well. They are in one gallon...

My plants are 21 days old since the sprout popped out of the soil, and I want to go to 12/12 for a week to get the sexes to show, and then back to 20/4 to veg some more and to cut clones. How long after I switch back to 20/4 from 12/12 will sexes show? How long does it usually take in 20/4...

My plants are on day 17 since the seeds sprouted out of the soil. I am using a 400w MH light. My temps are a bit high, around 80 - 85, and my humidity is low, around 20%. I am using soil that has some minor nutes in it. I water every day now, as the cups dry out quick. I have one gallon...

If I get a 250 CFM 6" inline fan, put 6" to 4" reducers on it, and used it with my 4" ducts, how much would the CFM drop? I have a 4" inline now. It's a little weak. It's rated at 80 CFM.

have a 400w MH fixture. It runs to hot, so I was thinking about getting a 250w bulb for it. I searched Google and couldn't find anything. Is this do-able? Safe? If the only downside would be slightly lower bulb life that would be cool.

I understand that the Cool Tube is designed to pull more heat off the bulb. But how do most people set up their ventilation systems with these? Get a splitter so the fan/filter also pulls air from a second duct from the room?

I have grown a bit in the past. Always under fluorescent tubes. I never had a good grow because of newbie mistakes, such as having the lights way to far from the plants, lack of ventilation, over watering, etc. This time, I did several weeks of research before I started. My set-up: My grow...

I plan on using a 400w MH for my clone/mother cabinet. What are the optimal dimensions for this use and lighting? Of course i'll have a intake and exhaust vent for heat and etc. Would a 250w MH be better for this use and to control heat? The light is about 6 inches tall, and the container...

I am setting up a grow area. Its a 4x4x9 closet. I am making a shelf, and on the bottom half I will do vegging, and the top budding. I plan on using a 400w hps for budding, and some CFL for my vegging/clone/mothers area. What is the normal wattage used for an area this size? I planned on...

Hello. I’m about to start a grow. My main purpose is to supply my wife and I with a supply of decent grass. I am going to go over my plan below, and I would like some input. I want to know if I am making any mistakes, overlooking anything, etc. I have grown in the past, always with the...