Fish survival needs water and a certain water level. Yesterday a fish friend raised a question to me: 'What is the impact of water level on fish and aquatic plants?' First of all, we can confirm that there will definitely be an impact. What kind of impact? It depends on what kind of fish you are raising. Most fish like deeper water. This depends on their native environment. For example, cichlids like to live in deeper water. While bottom-dwelling fish, such as catfish, are fine with shallower water. What are the effects of water level on the fish tank? Here are the following points

It can easily cause deformities in young fish

Let's take the dragonfish fry as an example. When dragonfish are born, they are carrying yolk sacs and cannot swim freely. They only lie on the bottom of the fish tank, moving with the water flow. Even if the water level makes them uncomfortable, they cannot reach the water level they adapt to. Most dragonfish are usually seen swimming back and forth in the upper layer of the fish tank. If the water level is too high for dragonfish fry, it will cause a large water pressure, resulting in dragonfish deformity at a very young age, most of which end the dragonfish's life and are eliminated. Besides dragonfish fry, many other fish will have this situation. And it usually appears when the young fish cannot freely adjust their position

It is detrimental to the growth of aquatic plants

If the water level is too low, aquatic plants will lack growth space. Some aquatic plants grow very crazy, and soon they will reproduce a large number. If the water level is too low, it will restrict the growth of aquatic plants. Some stubborn aquatic plants will grow directly into floating leaves. If the floating leaves are not dealt with, the bottom leaves will age and lose their underwater leaves, leaving only floating leaves. At that time, it is impossible to repair underwater leaves

It easily deteriorates water quality, and the water temperature rises quickly and falls quickly

If the water level is low, the overall water volume in the fish tank will also be small. Therefore, if a few large fish are raised, the frequency of water changes will quickly accumulate a large amount of harmful substances such as ammonia and nitrite. Once nitrite exceeds the standard, the probability of dead fish is very high. If the water volume is large, at least these harmful substances can be diluted. But if the water volume is small, the dilution amount is very small, so there is no effect. Especially in summer, the deterioration of water quality is very fast. And summer is very hot. If the water volume is small, the temperature rise is almost instantaneous, and the cooling is not in time

Moreover, the water level will also drop rapidly in winter. Basically, if the water level is low, the water temperature will be close to the room temperature, which is very cold. Large water volume is actually beneficial for warming in winter. The water temperature will be less affected by the external environment

Fewer fish species are available, and the ornamental value is lower

Besides native fish, most foreign fish from other countries are not raised in very shallow streams. They need a certain water level to be raised. If the water level is too low, they will basically die after a period of time. Fish with larger body shapes, such as tiger fish,

God fish, sword fish, and sword fish need to be raised with a higher water level, so they have enough space to swim. You need to be flexible depending on your conditions. However, to be honest, it is really difficult to choose fish with low water level, you can only choose catfish and tiger shrimp. And the ornamental value of fish with low water level will also decrease

Therefore, if you have the conditions, I don't recommend using very low water level to raise fish

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