light

decided to give this indoor grow a try with dwc, ive grown outdoors for years but never paid close attention to detail,nothing like ive been doin since starting these young ladies. my leaves are looking a little funny. i did start noticing the curling of the leaves a few days after lowering the...

Like the title says. Im curious.. How would 16/8, 18/6, 20/4, 24/0 or even GLR (12 on, 5.5 off, 1 on 5.5 off) affect brix levels in cannabis plants? Short and long term. (throughout each day and at harvest) And also in flowering at a range from 8 hours of light up to 14 hours of light per...

Hi guys! I'm starting my very first grow and pretty excited about it! I've got a ton of good info from these forums but can't find the specific info I'm looking for at the moment so I'm hoping someone can help me out. I'm growing 2 CSK white widow auto flowers (they've sprouted and are on their...

Hey everyone. I'm currently using a 2.3x.2.3x5 grow tent and a Mars II 400 LED light for my grows. I was looking at adding some additional light and was thinking about throwing in 2X 6500k and 2X 2700K CFL's. I know I can't put too much light in that small space, but would I just be better off...

Ok guys so I couldn't figure out how to get the damn pic to load.. so I have this light which are the cxb-3590 I THINK. Cree CXB-A-UV-H-40K-8-UL-10V - 240 Watts - LED High Bay - 24000 Lumens - 6-Lamp T5HO Equal - Round - 4000K It says it's only pushing 240 watts, but if I were to get separate...

Yeah some of you might have seen my disaster treads... :scratchinghead: Anyways here is my survivor she is looking strong it is a Northern light auto-flower. She is bloom week three-ish. I was think when can i start defoliate a bit? how do i do that safely without stressing the plant to...

What Strain is it? Amherst Sour Diesel Is it Indica, Sativa or Hybrid? What percentages? 80/20 sativa/indica How Many Plants? 1 Is it in Vegetative or Flowering Stage? Vegative If in Vegetative Stage... How Long? Almost a month. Indoor or Outdoor? Indoor Soil or Hydro? Soil If Soil...

Can anybody help with diagnosing this issue with my yellowing plants. Happy Frog Soil Temp 73-78 No nutrients to date except for one dose of Calmag for the yellow plants. 600W MH Light PH water 6.3-6.5 Light fan on plants 6 of the 11 are doing well Appreciate any help. Oh, the plant on the...

Hi guys just a question My seedlings are not showing much there like on pause does anyone know what par value a seedling need to be able to go toward the light and what would be a good temp my temp is high 30 degrees humidity shows 28. But the plants are still green, light is about 36 inches up...

Okay so, I've 2 months in with a light pattern of 18/6 with a 600w MH setup. Im monitoring the ph of the water and using natural spring water. But still, yellowing and burning at the tips. I keep light around 16"- 18" away. I gave it cal-mag for the last 2 weeks using it once every two waterings...

Hi Everyone, This is one of my first grows. Seed: Barneys Blue Cheese auto flower. Medium: Soil + Perlite. Time since germination: 5 weeks Nutrient: Used 2 liters of Greenhouse Superfeeding Grow with 0.750 gr nutrient per liter of water. Light: Yellow 80W and Daylight LED 100W 20x4 hrs The...

Got up this AM bright eyed and bushy tailed, ready to go. Pulled the plants out of the tent bound and tuck them to the screens and am ready to start setting up my drip system. Maybe two are so more hand waterings. Just put the ladies on the screens. I am running two 315's, one vert and one...

hi everyone i have recently had a few of my seeds sprout form my rock wool cubes the leaves are not developed and are still closed but they have broken through the surface. when should i throw them under the light?

Plants derive energy from light. And marijuana – also known as cannabis – needs light just like other plants. In fact, cannabis plants grow best when exposed to an ideal spectrum of light, according to Gary Arnold. Arnold, of North Providence, co-owns a Warwick-based company that sells...

I dont know much about COB lighting and I have some questions. Will this light be enough to grow a plant from veg through flower? And is it overpriced? If the light isnt good enough anyone know of another COB under $160 that is good enough for a plant. Max coverage area I am looking for is 2x2...

I've done a few grows with CFL's but was considering led's. this may sound basic to y'all but with a full spectrum light all the lights are on at once right? If so I assume switching to 12/12 puts them in flower and not the light kelven?

Happy growing all!! I've spent the last two years growing in just about every tent and light setup, from a 2X5 up to two 4X8's, 400 watt, 600's, LEDs, anything that I could afford at the time, but I finally moved out of the vinyl sweat boxes to an indoor room. I started in early spring and...

Hey guys! This is my first grow ever expect some chill plants i have grown before this to test the system. Am running a 2x4 tent with to 5 gallon buckets. For lights i have a Mars Pro 2 epistar 160 = 400w hps light according to mfr. Am using the GBH General Hydroponics Flora Series for nuts...

First time grower here. Can you adjust the light based solely on the Lux meter? Between 60,000-85,000 is supposedly ideal for flower. however these numbers based fr M my meter brings my 400watt HPS within 6-8 inches from my plant. I use the hand under the light method and it's quite warm but...

How do you guys block the incoming light from the lower tent vents during flower? Obviously the air still has to flow but all light needs to be shut out. This is a mixed use room so there will be lights on during the dark 12. I was thinking about a labyrinth of on-hand wood as a DIY. How do...