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Yea like stated above you might need to leach your soil because of salt build up. There is a bunch of ways to do this, some more effective than others. But the main idea is to isolate the excess salts and rinse them away allowing the plant to start absorbing nutrients again.

You want to have 50%-60% humidity for the veg cycle, so your doing all right there. Depending on what the ambient humidity is you could try to upgrade your fan, of course depending on what your using now. Or leave your grow room door open more often to get an average between the ambient...

I've never seen spots like that before on MJ plants, however i have gotten a light rust colored mildew on some Olliberrys vines that looked very similar. It also may be an insect problem, see any of those spots on any other plants in your yard? If you cant find out the cause i wouldnt worry to...

Are you against using nutrients for some reason? I'd bet that the pre-mature yellowing is from a nutrient deficiency. A little nutrient will go a long way.

I'd say the sooner the better, good air circulation is also important to help the plant in respiration. Just make sure your not sending your babies straight into hurricane force winds. Its best to have a Oscillating fan that bends the the leaves and main stalk slightly each oscillation.:-o

Heres some info on N-P-K. However I'd say "Best" is a mater of perception so its hard to say. Look at some of the 2+ hydro grows and see what catches your eye. http://www.cleanairgardening.com/npkexplanation.html

I wouldnt say that your humidity is too low, however for vegitive growth its best to have your humidity around 50 - 60%. Then around 40% in flowering. Since you dont think its the nutes, ph, or moisture, Whats the temp of your room, all growth can come to a hault if your area is to hot. :fire:

if your posting a post about a post, you might post a link to that post. :clap:

Since your going to veg in a relatively small area, id say scrap the glass part, that is unless heat is a big issue for you. I would just train the plants with a home made mesh of chalk line twine. This way your not robbing your babies of lumens, its less work and should give you more control...

yea, considering that plants don't really produce heat ;-), your question could be better answered with the specs of your room. What type of lights are you using? are they air cooled hoods or are you looking to overcome heat with an A/C? how big is your area and like was said above what is your...

Well id say it depends on what type of music your playing, country can give your plants root rot, classical can lead to nutrient deficiencies and yet rick ashley has been proven to increase yields by up to 400%! no but seriously, Myth Busters did a test to see if music helps plants grow. They...

Thanks for the response :clap:, however actually you don't NEED run off for a soil grow. I have been growing this way in large beds for quite some time and have had GREAT results to say the least. Really my question wasn't if you need to have run off for growing in soil, as i all ready know you...

I was wondering if any one ever used clearex in a no run off soil grow, or if there was another way to leach soil with out the need to have run off?

I know this post is a little old, but i thought i might add that its important that you let the chiller sit upright for at least a 30 mins before you power it on for the first time, or after storing it on its side. Also the pump having to high of a flow rating is also a problem, because the...