Whether the fin rot of koi can heal on its own depends on specific circumstances.
Mild Fin Rot May Heal on Its Own: If the fin rot of koi is not severe and is possibly caused by a slight bacterial infection or external injury, in this case, by changing the water appropriately and reducing the number of harmful bacteria, the koi may recover on its own.
Situations Requiring Intervention: If the fin rot is caused by severe bacterial infections, deteriorated water quality, excessive nutrients due to overfeeding, failure to clean the filter media regularly and other reasons, then measures need to be taken for intervention. For example, changing the water appropriately, cleaning the filter media, reducing the amount of feeding, using drugs for disinfection and so on.
Preventive Measures: In order to prevent fin rot in koi, it is recommended to change the water regularly, clean the filter media, keep the water clean, avoid overfeeding and prevent cross-infection of bacteria.
Treatment Recommendations: If the fin rot of koi is severe, besides improving the water quality, drugs like yellow powder can also be used for disinfection treatment, or the sick fish can be isolated to avoid secondary damage.
Through the above measures, the problem of fin rot in koi can be effectively prevented and treated, ensuring the health and survival of koi.