Foto & Fact of the Day: July 15 July 15, 2013 · by thelionfishproject · Bookmark the permalink. · Juvenile lionfish. Image credit: Reefguide.org Did you know…juvenile lionfish can be as small as 1 inch in length! The smallest lionfish captured in the 5th annual Green Turtle Cay Lionfish Derby was 40mm, or about 1.6 inches. Share this:TwitterFacebookLike this:Like Loading... Related