I only treat with evidence of worms.Do you treat for worms as a precaution or because you see evidence of worms?
Reading this seems like there are so many opinions?
https://www.backyardchickens.com/threads/topic-of-the-week-deworming-chickens.1136000/
(In Calif only natural ingredient chicken worming is legal. If ordering online products like wazine etc it will not be shipped to Calif)