Yes, it is usually advised to include a fan providing airflow within the tent.
Continuously blowing from a separate fan improves your ventilation system and strengthens the stalks of your plants. This is a great approach to address the issue of dead spots in your tent’s air circulation, which might occur from time to time. You also don’t want dead spots to serve as breeding grounds for pests and mold.
Hence It is well worth the time and money, even for a tiny fan.