1. Reason: If the water is not changed for a long time during the breeding process, the secretion discharged by the guppies begins to accumulate in the water, which will lead to the deterioration of water quality. When the water quality deteriorates, the guppies will gradually turn black.
2. Treatment method: Remove the fish from the original fish tank immediately, and disinfect the fish tank. Then put the fish into the fish tank for maintenance, if the guppies do not have subsequent health problems, it means that there is no problem.
1. Reason: The guppy is a tropical fish, and the requirement for water temperature is relatively high. If the water temperature is too low, especially when the season changes, the guppy will not metabolize smoothly and lose appetite, and then the whole body will be blackened.
2. Treatment method: At this time, it is necessary to immediately use a heating rod to raise the temperature of the water. Keep the temperature at about 25 degrees.
1. Reason: After guppies are infected with needle tail disease, blackening will also occur.
2. Treatment method: At this time, all the guppies need to be fished out, and then the healthy fish and the unhealthy fish are cultured separately. Then the fish tank is thoroughly disinfected. Put a small amount of salt in the tank of sick fish and let them soak in salt water for 20 minutes every day. Can heal about a week commonly.
