How many gallons is your tank?
Main is 10 gallons, hospital tank is 5.5 gallons (in there now)
Does it have a filter?
Yes. Biological, chemical, mechanical filter
Does it have a heater?
What temperature is your tank?
78 on average, can get to 79 and 80 on warm days...
After quite a bit of heartache and worrying over why my betta is going blind, among other issues, I discovered something while scouring forums. What he has looks very suspiciously like something I ran across called "jewel eye" or "diamond eye" bettas, where their eyes become shiny/iridescent...