Yes, it used to have a few aquariums housing different cephalopods but since Tidal Twister's opening has been closed to the public.Interesting! I figured they probably just renovated it for 2019 but didn't realize it was that old. Seems weird they wouldn't have done some preventative maintenance when they revamped it though, or just fixed it up considering they've been refreshing other animal exhibits around the park.
Was there also an aquarium underneath the Bayside amphitheater? I've never seen one, but there are photos online of what looks like one.