National Aquarium overhaul creates coral ecosystem

The National Aquarium in Baltimore has overhauled what once was a drab, leaky, concrete tank of mostly sting rays, adding 1,000 animals and 3,000 hand-sculpted coral replicas to create a colorful and massive new centerpiece exhibit. The massive central tank had always been popular but became dated, and it is now teeming with new life [...] National Aquarium overhaul creates coral ecosystem | www.limit.ws