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Google osmosis and turgor. You will find your answer there.

Are you pulling from above or below the fixture?

If you go SOG or scrog I think you can pull a couple zips easy.

I'm currently running 16 bulbs in a 5 x 5 with a 4 inch fan pulling from my tent to the attic and temps are fine. I keep them about 8 inches from the tops with no problems. Your going to need to pull that hot air out of your grow space.

I must confess that t5 lights kick ass. They are growing very nice plants with very manageable heat and the light distribution is very even. These are day 29.

Everything was going smoothly until my light hanger somehow slipped on half the girls and did some major damage. I just topped the burnt stuff and let them go. We'll see. The oldest girls are exceeding my expectations by a wide margin. T5 lights grow pretty plants. Growth rates are...

The research I have done says that temps at the root zone are more important that at the tops. It does make sense when you think about it. A plant can grow in 90 degree temps outside without issue because its roots are underground where the temps stay much cooler. Transpiration is the engine...

Heat is not a problem. Roots stay around 70 and tops no more than mid 80's. Using t5's so not sure about the lumens. But they slowly gain turgor through out the day as the take up water. My research has shown that too much salt in the medium actually pulls water out of the plant which causes...

Are there many things we accept as "best" or "the way" that are not necessarily best? I have grown in Soil, Soiless, Rockwool and now Coco. I have read and studied the methods of many "expert" growers both here and on other sites. I never used my own brain or saw with my own eyes. My plants...

Just quick day 19 update. Everything is coming along well.

Get some calm at or cal magic. That is a calcium def guaranteed. It will still progress for a couple weeks even after you give them calcium.

Powerveg spectrum Reptisun If I didn't know better I would think its the same bulb/sarcasm

If you look at the reptisun 5.0 spectrum it's nearly identical to the power veg. I thought that was interesting.

Which UVB bulbs are "the best"? I can drop the lights within a couple inches of the tops for a few hours a day.

I haven't talked about nutrients but I think I need to give a plug to blue plant. They are extremely clean. I switched from Canna and the difference is stark. With the Canna stuff there was a white film on everything they came into contact. I feed right around 400 ppm(water comes out of the...

I have maybe 10 grows under my belt and my last grow I would consider MY best. Potency was good I suppose but I have yet to grow or buy indoor weed that compares potency wise to anything done locally outdoors. Indoor is pretty but IMHO does not compare to good genetics done outdoor with...

No you can not beat free! What differences have you been noticing with the UV supplementation? Are potency increases real?

Thanks bro!

I'm pretty tapped out right now as those BadBoys with all the bulbs were not necessarily cheap. I was thinking that I would go with a smaller amount of UV over a longer amount of time as opposed to higher amounts and shorter time. Truth be told I'm swimming in uncharted waters with regards to...

Absolutely interested and thank you very much for your input. Maybe I should go with two powerveg as opposed to four till later in flower? Right now I'm keeping the lights about 12 inches off the tallest buds as I was/am afraid of burning them. They to seem to be thriving! I noticed the...