Stone ax fish
A fish with a shape similar to an axe, that is the stone ax fish. It not only looks like an axe, but also looks like a bird spreading its wings and soaring, so it is also called the swallow fish. Doesn’t it feel particularly interesting? The editor will introduce to you the characteristics of this lovely fish.
1. Small fish with special shape
Stone fish is a type of small freshwater fish with special shape. Their bodies are extremely flat on the sides, with a narrow straight shape when viewed from top to bottom, a straight back, and an extremely protruding abdomen. When viewed from the side, they look like a Pangu stone axe, hence their name.
2. Suitable for feeding on the water surface
The eyes are large and the mouth is upward, which is especially suitable for feeding on the water surface. The dorsal fin is set back; the caudal fin is long, and each fin ray is very long; the caudal fin is forked; the pectoral fin is particularly large, and it looks like a soaring bird when swimming, so it is commonly known as swallow.
3. The body color is plain and simple
Most species of stone ax fish have plain and simple body color and transparent fins. Depending on the species, body length varies from 2.5 to 9 cm. There is not much difference between the two sexes. During the breeding period, the female fish with a full abdomen is pregnant with eggs, and it is difficult to distinguish them in other periods.
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