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chronicdoc

1.2 m grow tent

i use a 1.2 m tent a 400w light and a 5 in fan, its in a cold place and i stuck a thermo in there the other day and it was like 18 light on, so i turned the fan down and now the room is about 21 lights on and goes to bout 11 lights off, there in nft and the solution is heated, will this be ok, is 400w ok in 1.2 m?? is it cool to turn the fan down to keep the heat off the light in there longer?

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youy want a 600w in ther really , but tube heaters might help

are you running light through the day

try raising the temp before knocking down the fan its for them to breath aswell as cool your room

Edited by jiffa

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Your lights on temps are what the lights off temp should be

Minimum temps 20deg lights off

Owd

Edited by Owderb

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i have a small 8oow oil filled rad, could i put this in tent? also woul cold weather cause small brown spots on leaves? is that a characteristic of the cold?

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lack of airflow might , you could use the rad, you want a max of 28 but 25/26 is pukka

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should i aim for a couple of degrees difference between day or night or tey to keep them the same or what?

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You haven't measured the humidity?

You might be in for a shock when you see how high it can go when cold.

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ive measured the humidity mate its ok lets not worry bout that 4 now :unsure:

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you should be able to reduce the airflow without causing a lack of co2, a 5" fan is MANY times more powerful than required just for replenishing co2. personally i would set about getting a speed controller for your fan, as why pay extra to heat up your tent, when your tent already has a massive heat source inside, ie your lamp!

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