temperature

i'm having problem controlling the temp inside my growbox i have 16 cxb3590, and when all power them all the temp goes up to 95 °F, when i power 8 of them (200w) the temp below the cobs goes up to 83 in a matter of minutes even when the heatsinks are still cold and the tent still open, i can...

i transplanted my babies into a bigger pots last week and im using BlackGold Orchid mix, bone meal, compost and dolomite. i use RO water, current temperature 29-32 celcius, humidity 64%, exhaust fan sucks the hot air out and a fan. based on the picture, what's my problem? please help, im kinda...

Hey Everyone, I am wondering if anyone has any suggestions of Data logging and monitoring equipment for grow rooms. What I am looking for is a device that measures humidity, temperature, co2 that has data collection that can either be connected wifi or cat5 cable to a computer or network for...

I'm currently running into some awful heat issues in my tent and was wondering how much cooler do LEDs actually run in comparison to a HID light?

Hey guys, how are you all doing? Like the name of the thread suggests, i'm having heat problems in my grow tent. I currently have a 9'x9' grow (8' in height) tent with 2x 1000w bulbs (I want to end up being able to run 4x 1000w bulbs). My ventilation works currently by sucking fresh air from...

2x 400w hps Pure coco in small nursery pots GH nutes drain to waste (hand water) I built a new flower room recently and decided to give the VPD guidelines a shot to see how my plants fare, their health, amount of water drank etc. I'd imagine that having a high RH% would slow the plants...

Hello everybody, I have a big trouble with my growbox. So, this is a 4,1x4,1x7,3 (125cmx125cmx225cm) wooden "box". I'm going to buy a 600w HPS, but here comes the problem. I can't decide which light setup should I buy: Go on with a wing or a cooltube? There will be 5 autos( indica hybrid). The...

If I have two tents, both with comparable width and length measurements, but one is 5 ft high and the other is 6.5 feet high, would one be preferable over the other in terms of keeping temperature and humidity levels regulated/favorable?

This plant as of today is now 2 weeks old. I have yet to feed it any nutrients yet. Lately it has been dropping with the leaves. It only droops when the light turns off as it is still in its vegetative state. Once the light comes back on, within an hour or so the leaves are right back up looking...

Sup guys good morning from Australia, So,firstly, im growing this PURPLE#1 strain from DP, does someone have any comments about this strain ? pontecy, taste, smell and colours ? And it's on 3rd week flowering now and didn't begin to show any colours at all yet, I'm keeping the air con every...

hi all, just found a digi temp probe in the cupboard, i understand that the ambient temp of a grow room is best between 68ºF and 77ºF (20ºC and 25ºC) for small plants, but what is a good range for the heat at the canopy (where the tops of the plants are), mine are at 93.2ºF (34ºC), can they...

Hey everyone, as of now I'm in the design phase of what I'm looking to build. Background: In Oregon and plan on growing 4 plants. Currently have an open stall in my barn with plenty of room to set up a grow tent. Size wise I'm looking to get the most out of the 4 plants, so I have been...

The graph is out of Ed rosenthals, the oaksterdams course book, the paragraph is from Jorge Cervantes medical growers bible. What's the best temp for veg and also best temp for flower. Why? Right now my temps are at 84-88 Using green pads for my co2 source

Opinions anyone?

I have a 48x32x60 in grow tent in my walkin bedroom closet with a 400 watt HPS air cooled with a 440 cfm fan that exhausts through a carbon scrubber. Since my intake and outtakes are both in the closet, heat has become an issue. I have done a lot of studying on grow safety and it seems...

Hello, I'm trying to calculate my monthly expenses for an AC unit. I live in a cold area, so there will mostly be cold dry air coming in through the intake. Is there a way to determine how long an AC will run given the temperature of the air coming in and the amount of lights/plants? Let's...