One of my swords has some scales missing near his head and back. The area is a white-ish patch left there underneath the scales, and it looks like whatever did it disturbed his slime coat, not very much but it looked lik some of it was left waving around as he swims. He's still maturing and doesn't have his sword yet, he's a little bit plump too which I hope is normal for his being a baby still. Anything I should do? What could've caused this?
