Can anyone explain what to do about this im not using a extractor fan could this be the reason?

Perfect thanks for your input, any extraction fan you can recommend relatively cheap for my setup?Herbalist wrote: ↑Sat Jul 09, 2022 11:12 amYou'll be fine with no extraction for a little while but i wouldn't recommend it. You need something to exchange the air once they're a bit bigger and using up all the co² available to them. Even a little clip on fan sat in the ducting sleeve at the top of the tent would be better than nothing.
Hygrometer is a must also just to keep track of temp and humidity.![]()
MOOHOOK wrote: ↑Sat Jul 09, 2022 1:02 pmPerfect thanks for your input, any extraction fan you can recommend relatively cheap for my setup?Herbalist wrote: ↑Sat Jul 09, 2022 11:12 amYou'll be fine with no extraction for a little while but i wouldn't recommend it. You need something to exchange the air once they're a bit bigger and using up all the co² available to them. Even a little clip on fan sat in the ducting sleeve at the top of the tent would be better than nothing.
Hygrometer is a must also just to keep track of temp and humidity.![]()
I already had a clip on fan in mind every setup has them will get one off amazon once I order extraction
I will look for hygrometer right now also how does one make a diary is it something on the forum GMO mentioned doing a diary but couldn't find it here