u/UnknownSt3w

Hey there! I’ve noticed my clown loach has these white markings on both of his sides and I’m worried they might be light burns from the heater (since he likes sleeping behind it). The only problem is I’m not finding anything that looks the same so I’m not sure- can anyone here please confirm if you think it’s burn marks?

I’ve had beta fish sleep on the heater with no problems, so I’m worried that if it’s not burns than there might be something that could impact the other fish too

He’ll be too big to go behind there in a few months, to a year, but I just want him to be as safe and unharmed as possible!