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I remember a thread a long tme ago that had a calculator in which you could put the dimensions of your room in and it would tell you how many lbs of dry ice you need to get the room to certain ppm. anyone remember? Or have the formula?

I have a 1000W hps that wont fire when using a timer. The ballast switches on and starts humming but the light doesnt. I used two different timers with no luck. The odd thing is one day I got up to manually turn on the light and the timer worked. Now the light will come on 2/5 times when...

I just stumbled upon something wonderful and tasty. I was tending to my plants and my scissors and fingers got completely covered in resin. I always hated that shit because I could never get it off. Well there was margarine on the counter in the way so I picked it up and a little got on my...

After pruning all the small flowering side branches off of 3 of my 8 plants to increase yield, I came home the next day to find most of the lower leaves rapidly turning yellow. I know this is natural and is caused by the usage of blah-blah in the leaves for the flowers, but a light went off in...

After pruning all the flowering side branches off of 3 of my 8 plants to increase yield, I came home the next day to find most of the lower leaves rapidly turning yellow. I know this is natural and is caused by the usage of blah-blah in the leaves for the flowers, but a light went off in my...

Has anyone noticed a difference between the two? I bought some Ph down from the hydrostore and it had hydrochloric acid as its active ingredient. It was more expensive compared to the ph down from home depot, but I think it works better. My Ph levels stayed the same and the one bottle lasted...

I was reading throught the forum and have read some pretty funny stuff but I never came across anybody robo-baking....basically pounding two bottle of robotussin (the kind with DXM). After throwing everything up you get a pretty crazy trip.

Starting over again! There is nothing worse than killing your babies but now that I have new ones I feel so much better. I went and bought a new system called the Turbogarden from Botanicare. The system came with a cornucopia of crap including : Tray 25gal res Pump Fittings Timer...

Im using botanicare pure blend pro and my PH jumps from 5.8-8.0 over the course of the day.(please no "omg thats so much!!" responses, I need info not dumbass comments) What nutes have PH buffers, how well does it work, and what level does it stay at?

ok so Im done with the DIY DWC crap. I had decent results but went through hell so I was going to buy a new system. I have a little bit bigger than 3X3 space and wanted a new aero/ebb/drip system to fill it out. I was looking at this ebb and flow TurboGarden Hydroponic System If not that...

Im 31 days into flower and all the fan leaves are quickly turning yellow. I was told that the yellowing of leaves is normal during the end of the flowering stage, but at this rate it seems like they wont make it until the end. Maybe Im just paranoid but check out the pics.

I am 21 days into flowering and have a few questions. Heres my setup: 2X 175W MH at 12/12 18 gal DWC (Use 10gal) 4x Afghani girls, Botanicare Pure Blend Pro, ppm at ~1000 I did a week of transition going into flower w/ 1/2grow + 1/2 bloom at 12/12. I was wondering if I should count that...

Just curious.

I have four babies in DWC in flowering right now and I noticed something weird happening. The fan I have is pointed at my lights but a few leaves from each of the plants is catching a little wind. The thing is that only those leaves are showing signs of nute lockout. The leaves turn a pale green...

I have four babies in DWC in flowering right now and I noticed something weird happening. The fan I have is pointed at my lights but a few leaves from each of the plants is catching a little wind. The thing is that only those leaves are showing signs of nute lockout. The leaves turn a pale green...

I read to use h2o2 to kill the slime but I also read that it kills the beneficial organisms the plants need. So what should I use? Before I came across this info I was using the recommended amount of h2o2 and then stopped but I didnt see any difference. I had slime on the roots and floating...

Ok I tried to upgrade my rubbermaid resevoir with a drainage valve but It leaked all over the place. At first I used silicone and it appeared to work until any pressure was put on it then it would just peel right off. I tried superglue and some rubber/plastic adhesive made especially for smooth...

Do you add the ppm of your water into your final count? My tap water is about 400 ppm (ill never drink it again) and If my plants need say 800ppm, do I start at the 400ppm from the water and add until I get to 800ppm? Or do I need 800ppm of nutes for a total of 1200ppm? Also anyone know...

Hi ive got a plant that looks sickly and I need some input. Its in the same resevoir as my other plants and this is a pic of the one right next to it... This is the only healthy looking one. All the rest look kind of droopy. The PH gets to 7+ sometimes but I usually have it around 5.5-6.5...