I came home from six flags yesterday, i forgot to tell my mom NOT to feed my betta. When i came home i noticed his head looked a bit swollen and a small lump in his body. Also, his eyes seem larger. What can I do? He hides behind the filter and doesn't seem to be as active as before. Please somebody help, I've had it for about a month now.
He lives in a 10 gallon tank by him self
at 78 degrees
i do have a filter
the tank has a hood on it
i have not fed him today at all
the top picture his eyes are puffy
the bottom picture you can see a lump in his body towards its tail