Is 34 degrees to high for a veg room?

Having some issues controlling the heat specifically in my veg room

Temps usually between 30 - 34

Temporarily, I'd say it's OK, but long term, I'd definitely be trying to get it back down a bit. Venting outside of the room is a good first step.

my plants started to fox tail during mid flower. I wouldn't recommend it.

Where is your probe?

Talk us through your set up. Might be things you are doing wrong that can be tweaked..

If you have high temps you should feed lower EC because they will drink far more

You can get away with 29-30 but 34C is just too hot. Definitely lower your nutes and make sure you have good air circulation.

krazysmoke said:

my plants started to fox tail during mid flower. I wouldn't recommend it.

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same issue I had this run, heatwaves made my AC less efficient than planned and ended up with foxtails.

i have some peaks on august that would go 42 outside and 34 in the grow room, it is imho high, first rule of thumb is that it is easier to remove hot air than to produce cold.

In my case i ended up buying a portable ac and placed in a way the air goes there and overall i got a decrease in the room.

In veg I wouldnt stress out about it too much, like others said it will make them drink more so cut nutes down a little. Ive vegged plants in my attic before with no ventilation and just fans, it would regularly get to 95 degrees F which is 35 C and they didnt skip a beat. It would sometimes get to 100, they would droop some but they snapped out of it once it cooled down some. I wouldnt reccomend it in flower anytime passed 2 weeks after flip.