you need to ge the salt out of the water ASAP. corydoras do not like salt in their water one bit, and it can harm them.
aquarium salt does nothing at all to help repair fins. they will repair themselves. fins that have ripped can heal pretty fast, usually no longer that two days, but fins that have chunks missing take much longer.
aquarium salt does nothing at all to help repair fins. they will repair themselves. fins that have ripped can heal pretty fast, usually no longer that two days, but fins that have chunks missing take much longer.