How do you deal with the humidifier in hydro ?

Hi there MaskedCucumber , really interesting question. I dont really know what motivated you to get a dehumidifier, but it's not such a simple thing i think. Basically the logic is that plants are mostly water, they use water, etc. much like us actually. So they actually enjoy quite high humidity, even in flower. The main problem with high humidity is the mold, so this is the issue you should prevent as a priority. What i do is i use beneficial microbes to make sure the plants are not contaminated. However, in your case you brought the humidity down. This means you should actually increase the temperature up to 25°C no problem. You'll see quite a big difference. Or you can keep your temperature at 21°C and bring your humidity down to 36-40% for the same results. the relationship between temperature and humidity is determined by the VPD. It's not so simple, but if you learn about VPD, you will level up your growing skills , really. Hope this helps ! 🚀