Quote Originally Posted by tevfik
Keep the thermometer in shade and major like that. Not under direct light.
Always be careful after 80, it does not effect directly but can cause side effects. For example, you may feed for optimum dosage but if your temps are not optimum, there can be nutrient problems because of that. It's like a chain. If one of the link is weak, the chain is weak.
For cooling the temperature down:
-You can place an intake to the bottom and point it to CFL.
-Remove those foil from the walls. Paint it flat white.
-Keep the door open.
-Use ice cubes, also helps to raise humidity.
Well it's a digital thermometer so I just put the probe down in the soil for soil temp and there's a second readout for the sensor that's on the device (one probe sensor and one sensor in the device). So I can get the air temp and then soil temp. I have my exhaust fan up top sucking right on my 300W equiv. bulb which is convenient because it's also the hottest and it stays pretty cool to the touch. I also made a new grow box that is much better organized and works much better than the one I have pictured. I need to take pics.

It's actually pretty funny. After I redirected the exhaust air up instead of down toward the intake, it's actually too cool now. I get a constant 71.8F now. At least I've heard that'd the perfect temp (72F) for flowering strong buds. 78F-80F is optimum for vegging and like 72F-74F is optimum for flowering from what I've read.

Just need to get those white widow seeds!!! C'mon nirvana seeds! I'm germ'ing some bag seeds of shitty weed I had from awhile ago just for fun.

EDIT: Also that's a really good idea about the ice cubes. Like a really great idea.
SnowGrow Reviewed by SnowGrow on . First Time Grow Hey guys, just get done setting up my grow box for my first time grow. It has a 300W equivalent CFL (about 4500 lumens) hanging over the plant with a color temp of 2700k and 2 24" tube fluorescents (about 1k lumens each) that are like 70W equivalent each with a color temp of like 7200k. I used almost 8 quarts of soil of miracle grow moisture control in the bottom of the grow box and I'm planning to grow one plant about 20" tall after the flowering is done. I'm hoping to get about 2 more grow Rating: 5