Unless you have a history of ear infections, tubes in your ears, or just sensitive ears like me, I recommend floating without earplugs. Even though my ears are sensitive, I still like to float without earplugs, I just have to take a break every once in a while and use them. Floating without earplugs lets you hear more of what’s going on inside your body while you’re floating. But, if you float without earplugs, it’s important to rinse your ears very well afterward, otherwise some strange stuff can happen. Read this reddit post.
I provide rubbing alcohol and hydrogen peroxide to help with this. IDK why I still haven’t gotten the vinegar solution in place. But, if you rinse your ears very well during your post float shower, you won’t need any of that, and you won’t encounter the strange things mentioned in this reddit post.