1. Is Black Mary a tropical fish or a cold water fish? Black Mary fish belong to tropical fish, because their origin is in the United States or Mexico, both of which belong to tropical regions, and their habits are relatively consistent with tropical fish, so they belong to tropical fish.
Although black Mary fish belong to tropical fish, their requirements for water temperature are not very high. On the contrary, they can accept a wide range of water temperatures, and they can survive in the water temperature between 18-28 ℃ under normal breeding. At this time, as long as the breeder can keep the water temperature in which they live constant, they can grow normally.
2. How much is the water temperature suitable for black Mary fishAs mentioned above, black Mary fish does not require high water temperature, and they can survive in China at the water temperature between 18-28 ℃. However, the most suitable temperature for their growth is between 22-28 ℃. When raising them, it is best to install a heating rod to keep the water temperature in a stable range, which can speed up their growth and make them grow better.
Although black Mary fish can accept lower water temperature, it is best for breeders not to keep them growing in a lower temperature environment all the time, otherwise it may affect their appetite and activity. Moreover, long-term low temperature will reduce their resistance and immunity, and eventually lead to death.
