What kinda of fish is this i caught it in a cast net in lake talquin in florida but it wont eat. I've tried to feed it shrimp pellets, algae tablets, live guppies, blood worms and brine shrimp.
It looks like a Fundulus species ... so a type of topminnow. I'll try to narrow down the species for you. I'm a bit surprised it's not eating, though perhaps it's just a matter of giving it a few days to settle in.
I think Unicorn1 might have a point. Although I'm not confident that it's Fundulus seminolis, if it's not that species then it's a close relative. Here's some information from Bob Goldstein's book on native American fishes for F. seminolis: American Aquarium Fishes - Robert Jay Goldstein - Google Books