The shape of each fish's mouth is basically a little different. Why can a mouth evolve into so many shapes? Isn't the main function of the mouth to eat? Why do so many fish have different mouth lengths, sizes, and shapes? In fact, the mouths of fish have evolved a form suitable for survival and foraging in the place of origin. What are the main types of mouthparts of fish?
<h1 class= "pgc-h-center-line" >1</h1>
If the fish's mouth is lower, there is an 80% chance that the fish will be an omnivorous or vegetarian creature. Usually fish with a mouth growing below this mouthpiece are more suitable for ingesting algae. In particular, the mouth is underneath and the shape of the mouth is like a suction cup, which is very suitable for nibbling on algae. For example, the scavenger we are familiar with has a very vivid alias called sucker fish, after all, the scavenger's mouth looks very much like a suction cup. And we often use scavengers and other special-shaped fish as algae removal tool fish.
Then there's the sucking loach. Although sucker loach is not exactly vegetarian fish. But it is also an omnivorous fish, just a vegetarian diet. Although the mouth of the loach sucker is not as distinctive as the mouth of the scavenger, the mouth of the loach sucker is usually a straight line that curves downward when viewed from the bottom. However, its mouth is also long at the bottom and also has a certain adsorption capacity. And it can use this small mouth to nibble on the algae little by little. The same is true of the loach, which is much the same shape as the mouthparts of the loach suckers and has the same ability to scrape algae.
Stick fish and baby swim bladders have mouth organs similar to scavengers and can also be scraped with algae. Most of the fish with their mouths underneath that we find so far are omnivorous, feeding on algae or aquatic insects, organic matter.
<h1 class= "pgc-h-center-line" >2. The mouth grows directly in front, is small, and extendable</h1>
Many of the fish with a front-growing mouth and a relatively small mouth and retractable are omnivorous fish, which means that they feed on insects, shrimp, and algae. Let's take the most common native fish, the small catfish, as an example. My little catfish are not picky eaters at all and eat everything. You may be pure meat eaters, but they also nibble on algae and can eat a small portion of filamentous algae and most of the brown algae. The crucian carp's mouth is also long at the front end, and the small crucian carp I raise in the tank can often see it pecking at the tank wall and stones, which is actually an algae removal. But when feeding the feed, it will definitely grab the food.
There is a fish called the striped lip fish. Listening to the name, you know that the mouth of this fish is long in the front, and there are many lines on the lips. In general, this fish is a vegetarian omnivorous fish, which is an exception. The lines on its mouth are very suitable for scraping algae, and it will also eat some foods with high protein content to supplement nutrition when necessary.
Most of the fish of the lamp family, carps, with a mouth that grows directly in front and are relatively small, are omnivorous, with the exception of carnivorous fish such as The Kunidou Taidou.
<h1 class = "pgc-h-center-line" >3. The mouth is long and wide in the front; the mouth is upturned</h1>
In general, many fish with a wide mouth or an upturned mouth are carnivorous fish. For example, the thunder dragon fish that we are familiar with basically only eats meat, and occasionally eats some duckweed. Its mouth is wide and large, and its teeth are very pointed, which is very suitable for preying on some small fish. Fish such as the Indonesian tiger and arowana also have upward-looking mouths, and these fish are suitable for preying on insects on the surface of the water or mid-level fish, and are carnivorous fish.
As well as Lua's can-go, the mouthfish also like to eat insects and small fry.
If we see unknown creatures in the fish market or in the wild, we can make a rough classification through the mouthpiece to avoid bringing them back with other fish and being vulnerable to attack or attack other fish.
If you also like to raise ornamental fish, you may wish to start pointing out a point of attention, all you need to know about fish farming is here.