If you post everything except Reels, Instagram shows you to almost no one new. Reels are the discovery engine — the format the algorithm pushes to non-followers.
7-20 seconds performs best for most brands. Add on-screen captions (most watch muted). Use trending audio but keep your own message. Vertical 9:16, shot on phone is fine.
Recycled TikTok watermarks, long intros, five ideas in one video, and posting once a month. Consistency (3-4/week) matters more than perfection.
Bottom line: hook fast, say one thing, caption everything, post consistently.