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I know when to use each one, its just that recently ive been lead to believe Mh arent even necessary and you can just use sodium bulbs for vegging? is this true?

ONEthousandW

haha at your quote sig. yes i a put screens on the vents and i guess i will need an exhaust for the room, i guess i was somehow hoping the air would be vented into the rest of my house., since my grow space ceiling has raftors that makes it connect to every room.

6", yes the cool hood is sealed, and since ill need to exhaust what kinda fan am i gonna need? HOW many fans am i going to need to vent this? grow space is 5x6 x7.5ft

Okay i have 25 foot ducting system thats blowing air into the cool hood and taking it like 9 more feet outside, i have a 180cfm fan which isnt moving the air out from the hood fast enough, what im wondering is what would be a good CFM fan for this many feet of ducting? second question is for...

so youre saying i should give them more water everyday then?

2 liters every day yes/

there are 4 liters in a gallon, what im going to do i think is, add the nutes to a 1gallon bucket then split that bucket into 2 2liter pitchers then use those 2 pitchers on 2 plants. sound good?

what would be?

Im using this guide, http://www.generalhydroponics.com/genhydro_US/feeding_charts/GH_KeepItSimple_DrainToWaste.pdf On the right side, Flora nova, aggressive bloom, NOW my question is since the amounts they give me are per gallon, and i'm using 5 gallon buckets, do i use 5x as much nutrients...

I have 8 plants ranges from 12-25 inches tall(4weeks into veg) that were given to me to finish up and turn into 2 or about 2 pounds. im forcing them to flower now and i'm going to flower for about 50-60 days, (strawberry cough strain takes longer) so i was wondering, since these plants seem...

alright thats good to know.

I just got an xtrasun 6in cool hood with 1000w hps and the ballast is turning on but the light isnt turning on, its a 125v cord and im pluggin it into the 120v slot, or should i be putting it in the 240v slot since its slightly over 120? Also i got these plants about 12-18inches tall about 5...

i would if i knew how to give rep

Awersome thank you. i have a cool hood set up so thanks for that info.

alright so i can just use a 600or 1000w mh on them and its fine? its not gonna hurt the 12inchers?

I just inherited some plants that range from 12-19 inches. Can i just use a 1000W mh to keep it growing now a little talller before i force it to flower?? (worried its to much for the 12 inch ones? maybe not)Ive never worked with plants in this stage before and i just have them sitting on...

Im gettin a bunch of ready to flower clones and i dont have a soil mix to use. I looked at "2010 revised super soil recipe" and it looked good but it said i had to wait a month to use it so i cant use that one. I need a soil mixture within 3 days that weighs about 300pounds, does anyone know...

this is very cheap. if you dont need any cool tubes or cool hoods then this will be good. My first light was one of these, (not this brand but style) and i occasionally noticed the hood conducted electricity and it would shock me when i touched it, and it carried to the chains that hung it up...

oh wow man really? the ballast is the power box thing? i thought it was the hood. In that picture, is that the ones you have? That is probably what I'm going to get, how much are they??