soo while I was away one of my bettas whom is an aggressive swimmer had scraped skin (or whatever it is) from his head and I was wondering if his head will grow over or if it will scar? It sucks he was such a pretty boy.
If Part of his scales, or fins is damaged then precautions should be taken to healing it
I would recommend slightly rasining the temperature within the tank to around 80-82 degrees Fahrenheit as In My Epxerience injuries and rips in fins heal faster with higher temperatures
Adding a small proper amount of aquarium salt if you have plants and fish that are tolerant of it, before adding a treatment of aquarium salt to your water always ask if the plants or inhabitants you have are tolerant of salt, hornwort, scaleless fish, tetras, and catfish a mostly intolerant of salt, it impacts them greatly
Keeping the water very clean and maintaining pristine water quality within the tank, depending on the size of the tank, the stocking, plants, and the filteration. I would usually recommend daily small water changes to keep ammonia minimal and to prevent diseases from occurring on the fish, fin rot is most likely to occur where there are rips in the fins, fungal diseases are common where injuries or scale losses have occurred
Keep stress minimal, ideally if there are rips in the fins, or injuries and scale losses you would want to take extra precautions to keep stress minimal, keep flow minimal, provide extra cover, keep area dark and warm. Don't bother the fish that much. a stressed fish has a lower immune system which leaves the fish more susceptible to many stress related diseases, such as fin rot, fungus, velvet, ich, and others that are related to stress but not considered diseases, such as tailbiting