Freshwater aquarium fish - Water is life for fish
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 consumers of oxygen: ten fish weighing 1 g each consume more oxygen per gram of body weight than one fish of 10 g. The barbels Fish that live on the bed or in dark environments (colored or turbid water) have barbels around the mouth (Corfdoras, Botia, for example). These appendages have a tactile and sensory role. By complementing or replacing the eyes, they enable the fish to detect possible sources of nutrition. The nostrils Two or four in number, these are located in front of the eyes. They play no part in respiration but, extended inside the head by an olfactory sac, they perceive and analyze smells. The operculum This protects the branchiae and guarantees the circulation of water through the regular movements of the valve, ensuring that the branchiae are always in contact with the water from which they extract oxygen. The term “gills”.sometimes incorrectly used, refers to the opening produced by the movements of the operculum, which serves as an exit for the water that has irrigated the branchiae.
You are probably asking yourself why discus is most beautiful fish? We asked ourselves that question many times and because of that we made discus farm.All you need to do is to go to our Discus Fish Breeders section.