Most gym owners treat hashtags like a magic spell. They copy-paste a giant block of 30 generic tags like #gym and #workout, hoping a flood of new members will suddenly walk through the front door. In reality, those tags just land your posts in front of bot accounts and people living three time zones away who will never step foot in your facility.
Effective tagging for a gym is about local relevance and specific intent. You want to reach the person five miles away who is tired of their current big-box gym and looking for a community that actually knows their name. Success isn't about being seen by a million people; it's about being seen by the right fifty people in your zip code.
Reality check: If you use #fitness, you are competing with 500 million other posts. If you use #[YourCity]Fitness, you're only competing with the four gyms down the street. Always go local first.

