Jim Peckham offers what he views as impeccable reasons for attending Thursday’s FISH fundraising banquet: you gotta have heart, and fun. Peckham, executive director of FISH, or Friends In Service Helping, says this year’s annual “Have A Heart” dinner is based on the theme “Opening your Heart is the key to opening doors.” But in addition to helping his and another non-profit in their work for the needy, he says, it will prove a gala evening at the Carson Nugget. “It’s going to be a fun time,” Peckham said. The banquet, he said, features a “crisp agenda,” adult beverages, a …