My beta fish has gotten progressively worse. I'm attaching a photo. These spots were not existent a week and a half ago, and a few days ago, there were only a few.
What are they?
My fish sort of just sits at the top of the water... he does swim, but he prefers to sit next to the heater or just gulp air from above.
It is a 2.5 gallon tank, divided by two. Temperature is 79-81. I test the ammonia yesterday (before changing half the water) and it was at 1.0mm/L. However it is a new tank so I believe this is inevitable.
I feel like I'm doing everything "right" and am failing! I'm not in a situation where I can get a larger thank (my university says the largest tank you can have is 2.5 gallons) but am tending to them each day, trying to lessen the affects of the tank... please help!
(The other one is just fine.)