Tropical humidity crisis, before it becomes a crisis

[Kl420]

Hey everyone, I'm looking for advice. So here is the background

Growin 10 plants in a 3x6 tent, all of them in soil. Temps range between 24-29°C and humidity around 70rh during day time. But at night the humidity goes up to 80+%. So the plants have started to flower just now and in the most early stages so no problems yet. But I am predicting this is perfect for mold to grow in as well, so I want to know what are the best humidity ranges to avoid mold. And is it enough to reduce to humidity every few hours to around 60% as I don't want to run the AC 24/7

 

[freezeland2]

In a ideal environment during flowering you should be 40 - 50% rh and never above 60%

 

[Kl420]

In a ideal environment during flowering you should be 40 - 50% rh and never above 60%

Wow that's pretty low, I guess only way to to get a dehumidifier then.