Temperature problem

Heat and humidity are super important—- you can have higher heat if you have a lower humidity. Look up a vpd chart

Gorgeous girls by the way 😍

My recommendation, and what I do, is to play with the temperature and humidity variables. When summer comes with high temperatures, I try to increase the humidity to avoid dehydration. In winter, with low temperatures, I lower the humidity to prevent mold. If you want to lower the temperature, you can increase the ventilation in the grow room and boost the air extraction, use LED lights that generate less heat, or a cool tube. Still, 28C is not bad at all; many varieties like that temperature.

It shouldn't really be a issue along as there's good airflow and she don't pass 35c then u should be good , no need to be alarmed and good luck 👍