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Yup, that PH is where nitrogen absorption beings dropping off fast. The way to change a mediums PH is to change the PH of the water. Add vinegar to the water until it drops to about 5.5, but no lower than 5, and continue to water with that lowered PH until the medium PH drops. As it does, you...

Hey, if you try the 12/12 cup version that would be tite-- nuthin like some mini plants in the corners! Definitely dont cut back on the water. You should be able to feel moisture in the top 2" of medium; 4" means its time to water. Try following directions for the foliar spray, but one of the...

I am really interested in LEDs and I think in 5 years they will pretty much replace all growlights. But, I am still not sure whether I want to give em a try yet. Seems like every year they get better and cheaper. I guess if you have crazy good results you will convince me =) Mikedigital, does...

mmm makes me hungry looking at plants flowering. You said you're growing Jack. Do you mean Jack Herer? I have heard good things about that but Sensi sells the seeds for 150 euros i think and I just dont know if i want to commit to such an expensive plant unless it really is what its made up to...

Looks like a great set up man. Make sure you read up on CFL growing so you know how to do everything appropriately. It does require a bit different technique than using HO lights. Does your soil have time release fertilizer in it or is just just fertilized? If it's fertilized then the plant...

Ok well figuring out what is wrong with th plant is probably the hardest part of growing :-(. Did the plant get worse right after transplanting? If so it could be from shock, especially with the different medium and all. For the blue dream, one of the problems youre facing is it is hard to tell...

I am assuming the plants look sad because they needed watering? You said they were dry when you got them. If they don't start looking happy within 2 hours of watering I would suggest troubleshooting in the sick plants section of this site. Looks to me like they just need some water tho...

one more thing-- I just looked at you pic from your last post and your CFLs are way too far away from the plants. CFLs are extremely weak lights and should be kept 1-3" from the foliage at all times. Doing this will create short and bushy plants, which is necessary with CFLs as the light isn't...

Whether to top or LST is entirely at the grower's discretion. They both have similar results when done right, creating a shorter and bushier plant with more colas. Which one is better is an unresolved debate. LST will cause less stress to the plant (go figure, its called low stress training)...

I have heard many great things about Dr. Greenthumb, including plenty of photo documentation of the strains he has, but I have also heard he is on the blacklist, too. Some people (seems mostly people from the U.S.) have gotten ripped off and, obviously, have not been able to do anything about...