The heater shouldn't ever get hot enough for them to burn it on unless you're in freezing weather or something.
Mine get the odd nick and scratch, particularly on their foreheads. My big one has 2 scuffs on it's head and a line down it's back from scraping something while swimming quickly after the smaller Severum. They come and go quite regularly when theres aggression in the tank.
Mine get the odd nick and scratch, particularly on their foreheads. My big one has 2 scuffs on it's head and a line down it's back from scraping something while swimming quickly after the smaller Severum. They come and go quite regularly when theres aggression in the tank.
