Well our fish is no its last fin and I am not sure what to do about it. We have had it for 2 years and I hear form those who have fish that 2 years is a long time for a fish.
You can see in the picture below the swollen blue eye and this blue has started to show up all over the purple color the fish is normally.
Yes that big bulb on the right is the fish's eye.
Anyway, I am stuck what to do. Is the fish suffering? I don't know. He stays on top of the water in this spot always and rarely swims anywhere. He eats and eats rather quickly when I put his food in every morning. I knock on the glass and he responds by swimming for a minute or so but then back to this spot. Sometimes he swims flat on his side and bends almost in half to try and turn around.
What do I do? I don't want to kill it if it is not suffering but how the heck am I suppose to know that? Also, how the heck can I do that? I don't hunt or kill things except bugs and spiders so this is going to bother me a lot if I have to do it to the fish.
I keep hoping that the fish will die on his own quickly but it has been like this for about 3-4 weeks.
What should I do?!