T5's a few inches from canopy? BUD TEMPS 90+!

Mrjacob274

Mrjacob274

Active Member
Might be a dumb question but ive been seeing the people use the term "nanner" what is a nanner?

joehartley said:
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Mine got over 105° for a couple hours one time. As I've refined my inlet and exhaust ducting my average bud temps dropped from 96° down to 86° and daytime ambient "feels like" temps have been high 90s in my area. I have eight 4 foot T5s 4 inches above tallest buds, 6 inches above most of the canopy.

I'm sure high heat is not good for them. But my main issue has been nitrogen toxicity (at 5 weeks flower). Stunted bud growth something fierce.

And produced nanners on this clone that WAS looking pretty darn good. :(

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whitebb2727

whitebb2727

Well-Known Member
joehartley said:
As mentioned, I gradually adjusted light schedule from day to night (from 7am-7pm to 10pm-10am) and apparently the lights being off during the daylight, even though I 95% light-proofed my grow room which is inside a shed that is about 90% light-proofed, my plants apear to have gone back into veg state from a very dim light leak. I also have Nitrogen toxicity, I assume from soil used since I always used less nutes than recommended. I flushed and they appear to he doing better, except for bud production at a standstill. Not sure if theexcess Nitrogen caused them to stretch and stop flowering or the dim light leak. That is, all except one plant that's in a pot shared with one other plant. They are all from the same bagseed. Wierd.First grow is a learning process for sure.

On a positive note, I received my shipment of 5 different autoflowering strains/hybrids! Germination in process :)
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If you have to ever change the schedule like that again just lengthen the dark hours until you need the light to come back on. If its in flower 12/12 just give it 24 he's darkness and then turn the lights back on. It will be easier on the plants than taking a few day to do it.
 
whitebb2727

whitebb2727

Well-Known Member
HansBud said:
ahhh I see, from my experience anytime my tent was over 90f my plants just didn't look happy they were droopy and almost wilted looking. But that also depends on strain and genetics some strains love the heat!! Some do not
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Its not so much the canopy temps, its the root zone temps. Its the reason outdoor plants can handle high summer temps. Its been over 100 here every day. The ground is 65 degrees. If you can keep the roots cool you can run higher canopy temps.
 
HansBud

HansBud

Well-Known Member
whitebb2727 said:
Its not so much the canopy temps, its the root zone temps. Its the reason outdoor plants can handle high summer temps. Its been over 100 here every day. The ground is 65 degrees. If you can keep the roots cool you can run higher canopy temps.
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that makes sense why my plants didnt like it the canopy temp was probably over 100 while the ambient temp is in the 90's making my soil warm up
 
R

roachfinder

Well-Known Member
Colo MMJ said:
Spider mites love hot temps.
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Yea? Well I keep it sanitary and clean in the room. And only one person enters the room....spider mites can only be brought to your spot.......something like a bed bug. They don't just appear. After 8 years....NVR had spider mites. Only have seen friends have them.I even make sure I'm 110% clean before going into the room
 
R

roachfinder

Well-Known Member
Did have a couple bees.....but I got this "riddex sonic plus" that just plugs into an outlet and I havnt seen any bees since........I wonder how the frequency effects the plants tho......
 
Urbz

Urbz

Well-Known Member
I did not see this brought up in the thread, my apologies if it has been addressed and I skipped it. Do you have an extract fan as well or only the 380cfm intake? I was using a 120cfm on a 4x2 grow tent extracting the air and it kept that tent at ambient. Canopy temp was four degrees higher with a 400 watt MH 6" away. I always thought MH burned hotter than T5. I've never used T5 so maybe I am mistaken.
 
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