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    what type of ventilation should i use?

    the area im in is 22in wide,5 feet long,and 8ft high.its a closet and i ducted the central A/C into this closet,but it only comes on when the a/c is on and i have a couple fans moving air in there.im currently running a 70 watt hps and my temps at there hottest are 82F.last night i installed a...
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    400 watt hps how much hotter than 70 watt

    im currently running a 70 watter and my temps are 72-80 degrees F.how much hotter do think it will get ?
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    yoyo hangers from ebay

    anyone used these things before.i ordered a set but they dont work like i thought they would. i thought they worked like window shades and self lock at a desired hieght but they dont unless im using it wrong. so what is your opinoin?
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    white powdery stuff on my rockwool

    2x2x8 closet with a homemade drip system,veging under flouros.i have a 3 gallon res and a grow tray above it with a drain that goes back to the res. anyway the plants are in net baskets in rockwool and surrounded by hydroton clay. from the side of the basket i can see the RW and it has white...
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    dwc a couple problems.

    well,i started this plant from seed (bagseed) in a ph adjusted rockwool cube and as soon a roots apeared from the bottom i placed it in my dwc system.everything was going great until two days ago.now its limp looking not falling over but sad looking almost like its overwatered but how can that...
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    opinions wanted, low wattage hps

    i've got one plant veging in a dwc system under florecent lights. now if i flower this plant at 12'' do you think a 70 watt hps could get the job done? the garden area is 1.5' x 1.5'x 8'. i hear the rule of thumb is 50watts per square ft.and ths light is 70 watts 6500 lumens and 2400k lets...
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    dwc question

    yesterday when i came home my plants were happy and perky looking but this morning when i checked them they were kind limp lookinkg so i open the bucket to check ph and i found both of my airstones floating at the top,so i stuck them back down and checked ph it was at 5.74 wich is ok and im...
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