sand? The colorful angelfish has higher requirements for the water quality environment. It is suitable for growing in neutral or alkaline water. When the water tank is not changed for a long time, the concentration of nitrite, hydrogen sulfide and other organic substances in the water will increase, and the water quality will be seriously acidic, thus causing the fish body to turn black.
In addition, the colorful angelfish is more sensitive and easily frightened. During the maintenance period, if it is often stimulated by the outside world or caught to play, it will also appear black sand phenomenon for self-protection. During the blackening period, there will even be the phenomenon of refusal to eat and inactivity. They also require high water temperature and need to grow at a constant temperature. Under the condition of artificial maintenance, it is best to keep the water temperature at 28 ℃. When the water temperature is too high or too low, it will also appear black sand phenomenon.
the black sand of colorful angelfish? If the black sand is caused by water quality discomfort, you need to change the water for it. You can first go to the drugstore to buy special sterilization or Baibichu medicine, first change 1/5 of the water, then put the medicine in it, and then change the water and put the medicine in it the next day. In this cycle, you don't need to feed it first, and you will eat it when it returns to normal.
If they do not adapt to the black sand caused by the new environment, they need to create a quiet and suitable growth environment to avoid being frightened. In addition, the water temperature should be adjusted between 28-30 ℃.
