Yes. Every animal needs air.
Goldfish gulp air at the water's surface to regulate their buoyancy and maintain proper oxygen levels in their bodies.
The same reason you run more actively with air in the atmosphere. Without air, and therefore oxygen, you and the goldfish will suffocate, making it difficult to swim or run.You take in oxygen through your lungs; the goldfish takes in oxygen through its gills.
In theory, no. Goldfish are aquatic animals meaning they live in the water. They cannot be out of water for long periods of time without dieing due to lack of water. With that said, Goldfish cannot fly through air. If you threw a goldfish in air itd might be considered "flying" but in reality its most likely to die. Goldfish do not have the natural ability and talent to fly through air. If you built a tank that can support water and fish in the air and fly it then they can fly using that device, as we fly using a helicopter,jet,plane, etc.
They definitely need a air pump, a filter, at least 20 gallons of water for one goldfish, a thermometer, and decorations to improve the goldfish's well-being/mood.
Well, considering that goldfish do not breathe air, they can live without it for as long as their normal lifespan might happen to be. Some goldfish only life for up to about a year and a half, while others can life for as long as 25 years or more. All without taking a single breath of air.
Goldfish make bubbles underwater by releasing air from their gills, which creates bubbles that rise to the surface of the water.
Your goldfish may be gasping for air due to low oxygen levels in the water, high levels of ammonia or nitrites, or poor water quality. It is important to check the water parameters and ensure proper aeration and filtration in the tank to help your goldfish breathe comfortably.
Goldfish bubbles, also known as air bubbles or oxygen bubbles, form in their aquarium due to a process called "gulping." Goldfish gulp air at the water's surface, which gets trapped in their digestive system and is released as bubbles when they swim. This behavior helps goldfish regulate their buoyancy and maintain proper oxygen levels in their bodies.
One goldfish requires at minimum a 20 gallon aquarium with a filter, and an air stone would be nice
Your goldfish may be making bubbles in its tank because it is trying to breathe air from the surface of the water. This behavior is normal for goldfish and helps them get oxygen when the water is low in oxygen levels.
No, but it helps them live longer and healthier.
No, however a goldfish will greatly benefit from having one. An air pump provides an added source of aeration which increases the levels of dissolved oxygen in the tank. This in-turn makes it easier for the fish to breath.