Hashtags are important for defining your content as well as enhancing your social media campaign’s organic reach. The use of hashtag depends on the platform of social media. Use just one hashtag for Facebook. Two hashtags on Twitter are the perfect way to get interested. Using at least 9 and up to 30 on Instagram. Don’t know what hashtags to use? Hire a social media expert to scan your social media site for the most productive hashtags for finding your content.