Many players who raise turtles have this experience. Turtles raised in the wild or in a quasi-wild environment have very weak odor. Even if they are fed fish, shrimp and other fishy foods, their defecation will not be too big. The fishy smell.

Once moved indoors, the whole room will smell fishy, ​​especially after feeding or defecating. .

After observation and analysis, the reasons are as follows:

If they are raised in the wild or quasi-wild, the air circulation is large and the smell is easily emitted. So it's not easy to smell.

A variety of bacteria breed in the wild environment, and many of these bacteria can absorb or decompose nutrients (mainly organic matter) in turtle poop.

For example, part of the smell in turtle poop comes from ammonia or amines (the former forms unstable inorganic substances, which are easily decomposed into ammonia after exposure to light, and have a pungent smell; the latter form organic substances, which after putrefaction , also smelly).

The nitrifying bacteria that everyone often hears about can nitrate ammonia or amine into nitrate or nitrite ions, forming inorganic substances without odor. The energy generated during the conversion process is absorbed by the nitrifying bacteria themselves, which is called It is an important source of energy for the survival of nitrifying bacteria. Similarly, excess poop residues, or rainwater brine seeps into the soil, and becomes nutrients for countless plants in the wild environment, naturally eliminating the stinky smell... However, most of the reasons for raising indoors or artificial environments are the lack of such beneficial bacteria.

Therefore, many turtle lovers do not agree to change the water frequently when raising water turtles, and use the so-called "old turtle tank". water". Old water means that it has been used for a long time and has a certain metabolic capacity (the number of beneficial bacteria in the water has reached a certain number and has the ability to digest organic matter). Generally, it is difficult to form "old water" in an indoor environment. The formation of old water requires a certain amount of light, a certain number of nitrifying bacteria and other beneficial bacteria, and of course a certain amount of organic matter supply.