hello. we used to believe that 5 killiefish in our 125 gal saltwater were mummichogs, but we are now reconsidering. they are a golden-brown color with bright, neon-turquoise flecks . they have been living quite well in our tank. we originally caught them while fishing for shrimp in John J. Burns Park. we have been catching them in burns park since before i was born. we have already learned how to sex them: female appear like giant mollies in shape and have a "pregnant" look to them. males look like standard minnows and get bigger and have alot more neon flecks. are these mummichogs?