I rinsed the bottles out each day and only did a hot water dip after about a week. I wasn't very diligent in keeping the bottles separate. Probably not ideal, but owell. My guys weren't too sick to begin with so I don't think it mattered too much.
Good luck, they will get better.
ALSO good to know about the Tylan 500I will be getting that next time and saving moneyl Thanks!