Breathing Water is aspirated through the fish’s mouth, passes through the branchiae and is expelled due to the movements of the operculum, which covers them. There is always some water washing the branchiae of the fish. Oxygen requirements are not directly proportional to the size of the fish, with the smallest species being the greatest […]
PUBLIC AQUARIUMS In public aquariums, fishkeeping takes on a new dimension. The general trend is to offer the public extremely large tanks, in which the behavior of the animals reflects as closely as possible what actually goes on in their natural habitat, usually beyond the reach of most people. These “living museums” serve not only […]
SOUTH-EAST ASIA The water in the rivers and streams is acid, sometimes colored, with temperatures often exceeding 25 C. The swamp and marsh areas are shallow, allowing the sun to exert a greater influence, and their water temperature can be higher than 28 C. Natural sites collect rain and floodwater, while the artificial sites consist […]