Another one of our goldfish died today. This is him (or her) floating lifelessly on the water surface.
Only two goldfish remain in our fish tank, plus one giant janitor and one teeny-weeny flat, shiny fish of some unknown species (I forgot what it's called). We originally had more than ten of this tiny flat fish. We also had maybe seven to ten goldfish originally, together with many kois that also perished.
I admit it, I'm a lousy fish keeper. I hate cleaning the tank and changing the water. So, yes, I am probably guilty for the deaths of the all our fishes. (Though I don't discount that there's a chance other, unknown factors are responsible.)
Our tank is a large, 75-gallon one, so right now it's looking very empty and sad. I hate to buy more fish because I know they'd die sooner or later.