Primarily Jack Crevalle (Caranx Hippos), but also Blue Runners (Caranx crysos) which some call "hardtails"

Jack Crevalle and Blue Runners are very common in the summer up to about a pound or two and make for great sport on four and six weights.

The Jack Crevalle however go on to the thirty or forty pound class where 12 weights with super high density shooting heads are be used to get down to them and then to do anything with them. Typically found in schools, they hit hard (and almost anything you put in front of them) and fight like a Tasmanian devil that had too much Colombian coffee for breakfast! Most jacks want their meals to be moving very fast! You may have heard the term "jack strip". We're talking stripin' the fly as hard and fast as you can. We're talkin' so hard that if there was a tarpon with a mile he'd spook! If you're fortunate enough to get your fly into a school of excited jacks, you're not likely to ever get to that second strip.