How low to drop temps during lights off with flowering plants in different stages

[Guest]

I have plants at different stages flowering with co2 and 85 degrees,at lights out I've been setting the AC to 72 degrees.It can go down to 60.I dont know how good 60 degree night temps would be on stretching plants before they actually flower,I know it would be great for my plants in late flower.72 seems to give good results plants finish well and newly placed stretching plants respong fine to 72 degree nightime temps.I'd like to drop it some.To 60 if I could get away with it.Anyone with a similar setup/problem?

 

[JJScorpio]

If you could get your daytime temps down to 80 or less I would see no problem going down to 60. Its not uncommon for outdoor plants to have nite time temps at 50 or lower during flowering....

 

[Guest]

Yea bro but at 85-90 the plants take off like rockets with 1500PPM co2,anything under 80 would slow growth down a lot.I know,until I got a lazer thermometer I ran way too cool because of the damn wall mount thermometers,I got it right now for sure.Its just I'd like to have 60 degree temps on newly flowering plants and I dont know how good that is.If someone does it with consistency I'd like to hear from them.I do mainly indica's

 

[Guest]

Another beautiful day in paradise,it'll be an 80 degree harley D afternoon!So anyone in a similar situation?You dont even have to have the same situation,just have 60 degree nightime temps for newly flowering plants.

 

[thedarkknight]

tricky question.... seem like ur running 2+ batches of flowering plants in the same room. Environmental changes are ment for 1 batch at a time. so the question become who many plants do you have in each batch? Are 90% ready or are 90% just starting? If you drop your temps too low ur going to stunt the 2nd batch and it might now be worth it. what are your % for each batch? Above 70f is probably the best mix.

 

[molasses]

why dont you try puting up like panda film or something similar between the plants.. a small piece.. and revent some of your cold air to there? maybe that side will drop 5degrees cooler? maybe even 2 or 3 but would that help? i'm not talking big either.. lke from the lights down..

 

[Guest]

Its usually about half and half once I get rolling with all seedplants being history,a bad dream you might say if you're ignorant enough to grow them out like I was.Never again lol

 

[thedarkknight]

half and half with a whole lot of girls, not bad at all lol... anyways if you can separate the 2 batchs that would be best, but realistically though i would just concentrate on the on the ones that are starting off. the cold temps will help produce more resinous dense buds... but at this stage they'll be good regardless, so getting the 2nd batch to flower nicely is more important. Keep it 75-80 imho... still warm enough to eat co2 for the 2nd batch and still cool enough to produce good buds for the 1st batch.

 

[Guest]

No my friend they dont use co2 at night,they do make it though.This is just a temp issue for newly flowering plants,co2 plays no role.Half and half all girls of course,I wont flower male plants I dont breed.Literally lately unfortunately..The thing about the seedplants is its best to take cuts and trash them,then figure which pheno's you want to keep.Seedplants are stretchy ugly pain in the ass and contrary to popular belief,you'll be ahead of the game flowering clones from them and not flowering them at all.Yea you may get 3 or 4 ounces out of a good,stretchy,unwieldy ass seedplant,but you would have done better flowering the clones in its place.You may lose a couple weeks,but I swear you'll gain in the end.I've had the seedplant and its clone in the flower room at the same time,go figure..This is for perpetual cloning grows by the way,I know a lot of folks like to grow from seed.

 

[bluntman 420]

ive grown indica dominant bagseed before. 85 degree daytime temps and 55 degree night temps. no stress and turned out very good. so youll be alright. hope this helps

 

[Guest]

All the way down to 55 boy I thought my AC kicked ass lol.I'm going to try 65 for a few days then try 60.

 

[Don Chocolate]

My temps at the tops are 85F-60F. I haven't seen any stress either.

 

[Guest]

OK thats two,I'm feeling more confident here.Any other 60 degree nightime indica growers out there?

 

[Guest]

yooooo.... we've been growing bubblegum and mk-ultra with nighttime temps 60 and a bit lower. I've noticed some lightening of the top set of leaves, but growth didn't seem slowed. On our fifth run with the mk-ultra now. We've been trying differen't things, and those temps you described were fine for us. daytime temps are around 80 with bio-co2.

 

[dreamoface]

no problem so far

no problem so far

i have nightime temps that are 60 and lower
i havent seen any problems yet.....i only exposed it to those temperatures when it showed sex and i had begun to flower, its been there for 2.5 weeks

 

[blynx]

We get 60s and lower at night here. Plants have been flowering for 63 days. I don't see problems with them other than they seem to grow slower at lower temps.