Is there any specail treatment for aquarium fish that have lost scales?

cally

New member
I just attempted to move my black shark from his old tank to his new big tank and he or she did not want to be caught very easily. when i finally netted the fish i noticed that it is missing a few scales. I'm worried that this may cause the fish to get a disease or infection or something. Is there anyway in assisting it to heal quickly? also is there anyway of telling if it is male or female?
 
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