Yes. Larger fishes frequently need more oxygen than smaller fishes in order to power their muscles. But this can vary. For example, a whale shark, which can reach sixty feet, is a relatively slow swimmer compared to a ten foot tuna, which needs a greater amount of oxygen because of it's more active lifestyle.
No, it isnt. There are chemical reactions while breathing.
The size of a fish's stomach can vary depending on the species and age of the fish. Generally, it is proportional to the size of the fish and is designed to hold the food necessary for its metabolic needs.
It is generally recommended to perform a 10-20% water change in your fish tank once a week. However, the frequency could vary depending on the size of the tank, the number of fish, and the stability of the water parameters. Testing the water regularly can help determine the appropriate water change schedule for your specific tank.
No, fish gills do not move when they are dead. When a fish dies, its gills stop functioning, as they require the fish to be alive in order to extract oxygen from the water through the process of respiration.
It depends entirely on the species of fish. They are pretty small, but vary from the size of a pin head to something the size of a pea. There are probably bigger ones for some of the bigger fish.
Not in most fish, but flat fish and eel pupils change in size according to the amount of light they receive - like humans, these fish's pupils become smaller when there is plenty of light.
Fish are accualyt not birds
The zebra fish will have a higher respiration rate
No, it isnt. There are chemical reactions while breathing.
All fish respire via the gills.
Animals = lungs Fish = gills
No , nostrils are absent in fish , fish inhale water by open mouth .
The smaller the size of a tropical fish the faster their breathing rate will be. The smallest fish will have the fastest breathing rates.
yes, depending on its size and the size of the other fish.
it uses its gills
Like all fish- through their gills.
its a chemical change