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Are guppies pelagic? Why are they at the top of the water?

Anyuan
Practicing veterinary physician
Guppies are pelagic fish, and it's in their nature to be at the top of the water. But if they're sticking their heads out of the water, it's because they're starved of oxygen. If they gather on the surface of the water for a long time and their mouths open from time to time, it means that they have been severely deprived of oxygen. At this time, change the water for them immediately, or use the oxygen pump to oxygenate them. If left untreated for a long time, they may die of lack of oxygen.
Are guppies pelagic? Why are they at the top of the water? Is

the guppy an upper fish

? The guppy belongs to the upper fish. They are native to South America, the West Indies and northern Brazil, and were later introduced to China and Taiwan as ornamental fish. They have strong reproductive capacity, strong ability to adapt to the environment, diversity of wild habitats, and belong to social fish. Most guppies like to move near the surface of the water, so they belong to the upper fish.

2. Why guppies are in the upper reaches

of the water surface? It is natural for guppies to swim in the upper reaches of the water, which is determined by their genes. Guppies like to move around one third of the way near the surface. When feeding guppies, owners can choose floating feed, which will make them smell the feed and gather upstream to eat collectively.

However, if the guppy stays motionless on the surface of the water for a long time and opens its mouth from time to time, it means that there is a serious lack of oxygen at this time, and it is necessary to supply oxygen to the fish tank in time. On the other hand, guppies in the upper reaches of the water surface also show that the water in the current fish tank is not suitable for the survival of guppies, and the water in the fish tank needs to be replaced in time.

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