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soooo I want something like this but for 4 COBs so I'd have 2 of these in a 4' x 4' how hard is it to make something like this? loll

http://www.cree.com/xlamp/horticulture interesting or meh?

yeah? lets get the top experts from this section and we all work together to plan and design a very cost effective, simple to put together, great designed LED light that will replace a 1000 watt HPS. it will all be very well documented, we'll have links to where to buy what, step by step build...

My plants are looking like shit after being under these LED for only a few days... at this stage under my HPS the plants still look flawless... Soo... am I doing something wrong? Do I need to tweek the ratios of different elements in my food? Anyone else run into anything similar when switching...

Yo!!! I just got 4x of the BML SPYDR 1200 and I want to build an airtight sealed box so I can use CO2.... I can't just build out the entire room because the area this is going into is about 200' x 400' (this is all for testing purposes) so... if I go to home depot, what do I need to buy to...

strain is 'Hong Kong Star' in Pro-Mix HP and 2.5 ml of Dyna-Gro Foliage Pro... the guy I got the clone from originally said this is "normal" for this strain and he's seen it on his plants for the last 3 years.... all the other strains in with these are perfect no issues at all.... ideas!??!?!?!?

the designer claims the LED will last 40 years because the temp stays very low. temps stay below 55 degrees. Check this !!!!!! http://www.jakedyson.com/products/ariel-downlight/

Just kidding... what kind of fucking idiot would buy anything from Advanced Nutrients?

Hello, I'm looking to automate my watering in a 10x10 tent ( soil ) and am wanting to do this without using any tanks / reservoirs. Is it possible to build something like the easy feed system, but for much cheaper? The easy feed and the dosatron are really the only 2 that I can find but those...

Everyone please post your recipe for success with Foliage Pro. Mine: Medium: Pro-Mix HP with Mycorrhizae Dyna-Gro Foliage Pro at 3.33 ml / gallon Dyna-Gro Pro-Tekt at 0.83 ml / gallon w/ tap water (Denver) at about 140 ppm for total of 400~ ppm / 0.8 EC Here are my test plants at day 4 flower

Hello! I'm getting a ton of yellow fungus and even some mushrooms in my coco??!?!? this is my first time growing in coco so am I just over watering? Is there somethign I can spray that will kill them?

just how slow acting is it? I just bought a 5lb bag of Espoma Garden Lime to use with my Jacks 30-10-10 because I believe I'm close to running out of Cal / Mag in my soil.... How long will it take to be absorbed by the plant and exactly how much should I be using and how often? thanks...

Hello! is there a fogger/bomb that will actually kill spider mites? I'm still in veg growing trees, and I'm unable to kill these mites. They seem to have good hiding places and it's hard to spray under every single leaf with all the sprays that I've tried. Would this work...

Hello! I have a tent going with 4k watts. I have a single exhaust fan to cool the sealed reflectors. However, my temps are staying at about 85° F. Could someone recommend an AC unit please?

Hello! I have a 10' x 10' tent, along with an 8" Max-Fan (675 cfm) running to cool the lights (sucking hot air out of the tent) and then just the intake vents in the bottom (no intake fan) my temps are staying at about 85-88°F. Is that too high? I'm thinking because I have such high cfm that...

Hello! I'm trying to select a tent to go with my 2000 watt soil grow. Would a 4 x 8 be fine? I will be growing 8 plants only, so what size tent, and how tall should the plants be before I flip to 12/12 ? thanks...

Hello, I have a 4' x 8' tent with 2000 watts. Is it possible to do 8 large plants? what would be the best way to go about it?

Hello, these plants almost died after I believe getting root rot (brown roots?) and I believe I had some too high ppm issues as well. Anyway a few weeks later they are looking better, but the tips look slightly burnt and there are some brown / green spots that are concerning me. They are on 18/6...

I'm about to buy one of these: http://supercloset.com/product/grow-rooms/big-buddha-box-vertical-grow-system/ with 78 plants what is a realistic yield? is 2 oz per plant possible? I'd do 2x 1000 watts...

using Dyna-Gro line... ppm - 520 pH - 5.7 water timer - 1 minute on / 4 minutes off temps - around 70F