The Tennessee Aquarium’s annual family-friendly Halloween party, scheduled for Friday, Oct. 28, will take on a “monstrous” theme in honor of the newly opened Monster Fish exhibit. Both Aquarium buildings and River Place (The building where Monster Fish is located.) will be packed with spooky — but not too spooky — fun for “bouys” and “ghouls” during this year’s celebration. AquaScarium IX: A Monstrously Good Time will begin at 4 p.m. when guests can begin their Halloween trek in the Tropical Cove.