Looks like a ladyfish.
You'll do really well in the dark, you can legally use a light at night to attract bait which in turn attracts the bigger fish. I wouldn't be surprised if you'd get some snook around there at night time. Shrimp and jigheads is a pretty simple setup, basically all I use when fishing Florida (Although I use half a shrimp). You're close to all kinds of good fishing, I'd definitely get out on the beaches as well and fish the Gulf. Maybe head up towards Sand Key Park and see what you can find there? I usually do most of my fishing near Honeymoon Island State Park on the dog beach in the main channel. Pick up some Docs goofy jigs, tip with half a shrimp and snap them back fast. I've caught everything on that setup. Sharks, pomps, ladyfish, rays, jacks, mackerel, whitings, snook etc.