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Use LEDs when penetration isn't a concern. If you've got trees, then LEDs are only good for side lighting and HID is the way to go to get that...
6 weeks and no nutes??? Them girls are hungry! Look into the lucas forumla if you want something foolproof and effective. It uses GH micro...
Sounds like you've done some good research. What nutes are you using? Pics are always nice.
Get a bulb with a lot of lumen output in your required wattage. Enhanced spectrum bulbs are a good choise as they usually have more lumens (and...
That question isn't so cut and dry my friend. What grow technique? What strain(s)? How long will you be vegging? What type of lights? Are you on...
^ I agree. I always like to use 120W per square foot of canopy with CFL lighting. I just don't recommend it any more cuz too many people think...
I always got algae on rockwool cubes (one reason I stopped using them). Like ^ said, peroxide works, but I just leave it now. As long as it...
MH bulbs put out light in a bluer spectrum. Since the blues are closer to UV than the reds, the MH puts out some UV as well. More light will...
Full spectrum meaning from 380nm to 780nm? If that's the case, CFLs will be better. Here's why: LEDs have low wattage, so they don't...
I believe that booster fans installed after your main fan will only slow down the airflow if their boosted flow is lower than the flow of your...
Too many variables my friend. Only time will tell.
82 is a bit warm. Do as the others have said... wrap them buckets in reflective taps, blow fans on the bucket (preferably from outside air-- from...
Nice writeup. Here's a couple things to consider. A 400W HID light has about a 4 square foot footprint, a 1000W has about a 6 square foot...
If it's 104 TRUE watts (not equivelant), than it'll do fine for 1 plant.
I've hooked up CFLs, horizontilly, to a piece of sheet metal and then hung that. It's much easier to adjust them all at once then one at a time.
Are they low watt CFLs? If so, that's probably why your plants are going towards the HPS. Yes, supplimental lighting will help (especially light...
I like to harvest when the trichs are at about 40% amber.
Take the volume of your grow space (in cubic feet) and multiple by 5 (for a 5x air exchange). That's the minimum CFM you need for it. Your grow...
I always flush on the last week, (unless I'm growing organic). I rarely flush at any other time... unless I F up. :eek:
Chillers work fantastic (but are out of most budgets). Aluminum tape helps, as mentioned. It reflects the light and heat, unlike the color black...