400w Club-Show Off Your 400w Pride And Joy

hardroc

hardroc

New Member
Yea I know that 78 is optimal, but it won't kill 'em if it spikes every once in awhile. Just think of outdoors...........it's not always the same temp.........
Check out my plant, it sure don't show ANY signs of heat stress...........the 1st one in my sig
 
Integra21

Integra21

Well-Known Member
del66666 said:
hi guys, was using envirolites, then i chucked in some 70 watt hps, last month i bought a 250 hps and today i got a 400 hps. havent fitted it yet, my space is roughly 4x3 by 3ft high, 1x 5inch inline fan and 1x 4 inch inline fan, you guys think i have enough head space?
Click to expand...
If those are your specs on room size its doable, but I would say a scrog is a must. If you look in the begenning of the journal in my sig, you can see how a grew 6 plants under a 400w lighina space that was 3x3x3 and got 9.75oz from it. Im sure it will have a ton of info that might help you out.
 
Integra21

Integra21

Well-Known Member
Keep in mind, you dont have to read the whole thing. The last 1/3 of it is with my dual 600w lights. But all the 400w stuff is in the begening.
 
fabodnickMD

fabodnickMD

Member


OK, so I am in the middle of several different projects, so I have set up a small 400w HPS In a remote location to see what we can do with it.
I am going to make this as low maintinence as I can, and let the nutes and the lumens speak for themselves......Stay tuned
 
doctorD

doctorD

Well-Known Member
sure the temps outside vary a lot but its well known its not good to be too hot or too cold. Its your job as a grower to give your plants the very best environment you can. Plain and simple. I guarantee if you drop your temps from 90 to 80 you will see an improvement. Just as you would if you could drop from 80 to 70. Now with co2 its a different story. 80-90 is great with co2. so if you cant get the temps down think about adding co2.
 
M

McFonz

Well-Known Member
Adding CO2 requiers no air venting, and with that the temperatures will rise due to heat buildup.
In my grow at least, it gets to 48°C in the summer, and If I added CO2 and didn't vent the place it would quickly rise to 55-60°C or so. And thats not good for any plant I know, no matter the CO2.
 
doctorD

doctorD

Well-Known Member
sorry bud but im talking fahrenheit not celsius. that would be 30-35c. sorry to confuse you. But did you really think I was saying to grow at almost 200deg? Really??
 
R

reuben85

Member
im new to growing with a 400 watt hps i started out with cfls.so i got a few questions if you guys can answer that would be great,an you guys got some real nice looking plants.1st how close do you put the lights to your plants?2ndwill i get a bigger harvest useing a 400 hps?how much do you guys harvest each plant?my temps are 72-77 is that okay?and last how many plants can you get under a 400 hps?thanks i will post my grow with pictures tomorrow,thanks.
 
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