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those look a little stretched. Almost a little late for LST somewhat, eh? I would have started LST and topping a bit sooner; start your topping around node 3,4, or 5. LST from the start. These can for sure still be tied down a bit hopefully. Good luck.

aight secured a fantech fx8 481cfm 8" fan, could I just make a DIY carbon scrubber and call it a day for ventilation/temp control on the box? Will i need anything else to pull the hot stale air from the 2x4x5 cab with a 400watt hps and batwing? Will the fan be able to create enough negative...

Vents: two 6" round, two 8" round, two 4" round, three 19 1/2"x2 3/4" rectangular

imma for sure ventilate, just wondering if the 6" duct booster would be enough, but sounds like not. I already plan to have an oscillating fan on the plants to help their growth. If you had less than $50 but wanted to keep temps at the right level( 75-78F? ) what would be the best you could do...

the reflector is just a generic batwing type. This cooltube at HTG is $100: http://www.htgsupply.com/Product-CoolTube-6in-Reflector.asp Much too pricey for me after costs already spent, but low temps NECESSARY not an option, I know. With no ventilation whatsoever, what do you think temps in...

did your 400 watt bulb get very hot inside the 2x4x6.5 setup? what kind of cooling do you have setup?

Hello RIU, I was wondering how much heat is emitted from a 400 watt HPS and/or MH bulb on a digital ballast. Using a 2x4x5 grow tent with mylar interior. The ballast has a 10' cord from ballast to socket, so the ballast will be housed outside of the grow tent to keep any heat it may emit out...

what kind of duct fan would you get for this size setup? how many cfm?