lump on lip

[chrisdef15]

will that work if i attempt to scrape it off with my finger nail...

No. If it is an actual callous from a year or years of rubbing against the glass then it will be hard and would have to be cut of by vet and treated with antisptic. Not worth the trouble.
If its just a wound then it should go away in a few weeks if water is good.

 

[mr_jars]

it dissappears , then i'll do him a favor and do a water change, and he'll repay me by banging up against the hood.. love and hate.. love that fish.. hate scaring him