how cold is too cold?

[kyndone]

its been getting down to 40 degrees here, but my room doesnt get below 60., but is 60 too cold ?, ive heard it sometimes depends on the strain, ive got afghan bullrider X bubblegum, is that a strain that can handle the colder temps, or do i need insulate better?, ive got co2 on a timer which ive heard helps, and a 400 w hps, that is pretty warm but 60 seems a little chilly for em. imo, any help would be appreciated.




sorry, i will get better pics.

 

[Hazy Lady]

To utilise the extra Co2 you need a much higher temp, nearer 80°F, I would turn it off until the weather improves, I would say your plants will slow down quite a lot at 60°F and you could use another 10° and 15° would be even better, around 75°F 'day' and not lower than 60°F as the very very lowest 'night temps'.

 

[FreezerBoy]

It's not optimal but, beats not growing at all.

 

[habeeb]

in a tent? you recirculating air from bulb?

you need to get a source of heat, as low temps can cause P problems

 

[kyndone]

habeeb, ya, its in a tent inside of my shed, this is what im seeing,as far as P probs, it is getting pale yellow,and is sketchy about growing, i have an exhaust fan, pulling the air out, and added co2, but im going to go with a whole different system, (sealed box, 4x5x3 that will fit 4-6 flowering, get some neg pressure going and control the inviro., i confided in a friend of mine, who i trust, after he was done laughing at my set-up, he offered to help me build a box, so i will post some pics as soon as i get everything up.,

 

[Motta-Tokka]

I have been getting 45f night time temps (daytime) in my grow with no issues. I would not recommend it though. I would say its like the 90f day thing.. You can do it but its not recommended and they could stress, or die because of it.

 

[kyndone]

really what im seeing is it not growing very fast, and lightening, of the leaves, but the leaves could be a different issue all together, im just low on money right now, so im doing what i can to preserve what i have going a t m then im switching to a closed loop, w/ a sealed box, totally different system, and again, thank you to all who wrote in to help out.