3D-printed shell halves allowed researchers to peek inside the cichlid's home and observe the behavior of the mother and her fry during brood care.

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world ... common pet since it is ...

and those funky little bubble-activated deep-sea divers--then an aquarium maintenance service is the business for you. You'll clean and maintain the tanks, feed and care for the fish on a routine ...