Hi al just need to know where to hang the thermometer for the temp controled fan thanks
It is best to keep it away from the light, as lamp radiates a lot of heat. I like to place mine at the height under the canopy, because that is where you want the temperature to be proper. When I used bubblers exclusively; I sometimes placed the thermometer right on the top of the Reservoirs.
Thanks latewood I’m new to this and don’t want to get it wrong … some tips are going yellow on both plants so a little worried it may be to hot I’ve got a 400w hps in a 600x600x1800 tent .
You can buy 2-3 digital rh/temp meters online…approx. 3$ each u.s.
Will try to get you a link to what I use.
Place them in 2-3 places. I do 
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