Due to cold weather i turned off the one fan , it helped to raise the temps back to 23°c . But without the fan the humidity spiked up to 65% . At first i was scared of mold but after watching them very closely for 3 days they seemed to love the high humidity and are healthier than ever. Will be turning on the fan when temps climb again in next few days. Airflow is not a problem . Intake fan creates enough moving air for now.