One Pot, Two Lives | a planter and a fishtank in one to promote a beautiful example of simbiotic living. While the fish's waste provides nutrients for the plant, the plant filters the water that it is fed to provide clean water for the fish. Genius!
Oceanario de Lisboa (Lisbon Oceanarium) Portugal, "The centrepiece of the stone and glass building is the 1.3-million gallon (5-million litre) holding tank and the Oceanarium consists of four distinct ecosystems that replicate the Atlantic, Pacific, Indian, and Antarctic oceans, each featuring the aboveground birds, amphibians, and reptiles associated with those waters." -Posted by QUeNny XD