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The first thing to determine in raising fish is the water temperature and density of ornamental fish. How should we determine it?
1. How to set the water temperature and choose heating pipe ?
The ornamental fish that have just entered the fish tank should first maintain the temperature within the optimal temperature range they can live in.
For example:
Cold water fish is about 18 degrees to 22 degrees, small tropical fish is about 20 degrees to 25 degrees, medium and large tropical fish or high-end fish, around 25 degrees to 30 degrees, is their preferred temperature for the first time into the fish tank.
or in general, must be twice higher than the previous feeding temperature, .
We can also take the median value between , which is two degrees higher than the previous feeding water temperature and their optimal water temperature.
Before winter, the water temperature is below 10 degrees, it is better to be high than low, and before summer, the water temperature is above 32 degrees, it is better to be low than high.
However, regardless of the temperature difference in summer and winter, the temperature difference between ornamental fish that are just entering the tank, the temperature difference between adult fish in should not exceed five degrees, and the temperature difference between fry should not exceed two degrees.
In other words, we must not only weigh the seasonal issues, but also weigh the optimal water temperature, and also weigh the previous water temperature and the temperature difference in the tank, and also weigh the growth period of the ornamental fish in. There are five points in total. The gap is too large, and the problem can only be solved by moderate over-temperature or slow rise and fall.
The choice of heating pipe is roughly liter of water corresponding to two watts, which is also a formula.
However, this value range will definitely have a deviation, and this deviation refers to: The difference between our room temperature and the predetermined temperature. The greater the difference between the two, the greater the power selection of the heating tube will increase.
will decrease otherwise. The power selection principle of most heating pipes in is to choose high rather than low, but not too high.
2. How to determine the density, choose ornamental fish
per liter of water to raise one centimeter of fish. Although it is only a theoretical number, it is more suitable for small ornamental fish that are adults in . is not suitable for fry or sub-adult fish that grows faster. Therefore, we must also make adjustments based on actual conditions.
or is only temporary and relative for ornamental fish with certain growth potential.
, and some aquarius people have suggested that we can above this formula, and reduce the feeding density by another 20%.
For example, 100 liters of water, according to the formula, we can raise 100 small fish one centimeter.
And this little fish is already an adult, so we can reduce the density of by 20% on this basis, which means that at most 180 html can only be raised.
For example, 100 liters of water, 10 cm of adult fish, we could have raised 10, so, just raise 8, is based on the soundness of all filter systems.
If the filtering system is relatively weak, such as a three-in-one water pump and a shallow filter box, then we can reduce by another 20%, and it will become 6 pieces.
Moreover, this is still in the case of a naked tank. If thick bottom sand is laid in the tank, or other landscaping space, the domestic water body of ornamental fish cannot reach 100 liters of water at all, then it also needs to decrease.
In addition, there are factors such as water temperature, how much food is fed, and the frequency of water change should be considered. There are also the oxygen consumption of ornamental fish and body shape issues. For example, small tanks raise goldfish and koi, the should be moderately reduced in the feeding density according to the specific situation.
is a moderate decrease, not a sequence of decreases, so it is still gone.
is also based on our own observations. For example, when ornamental fish swims, they can only occupy one-third of the space in the fish tank. This judgment is also very accurate.As long as
exceeds this value, it means that the ornamental fish has grown up, or the original feeding density is high.
I believe that I basically explain the feeding density of ornamental fish, right?
I am a fish farmer. Please pay attention to more ornamental fish questions, thank you!
