Red tide is back with a vengeance in Charlotte County. Medium concentrations were reported in the latest samples from the Florida Fish and Wildlife Conservation Commission. Park rangers said on Monday, dozens of dead fish washed ashore in Englewood, but officials are encouraged after no new dead fish were found on Tuesday. Some area businesses, especially restaurants with outdoor seating, worry that the smell and irritation caused by Karenia brevis could wind up hurting their business in the busiest time of the year.