Either its sleeping or hes dying slowly this happen to me yesterday and they all die except for two
Betta fish sleep on the bottom of the tank. I've never seen one close its eyes but they will often rest on the bottom when there is no action going on around them. Betta like to be around movement. That is why we have my betta fish in our living room.
any
Goldfish can settle at any level in the water to rest/relax although they often do go to the bottom.
If you mean that if they come from their mouth or their bottom, it's bottom
Her Goldfish.
The fish may look paler than normal or exhibit lethargic behavior. They also will sit at the bottom and refuse food or may become unable to move. Their breathing will usually be very labored.
rock botom food
Its Dieing .
your goldfish might die and maybe eat to much or the water starting to get dirty
cause there dumb
Usually at the bottom of the tank in the rocks.
That means your fish is ill