There is a high possibility that it is on the bottom of your tank because the goldfish is very sick, such as constipation which can lead to swim bladder disease, or a problem with the water quality.
Start by testing your aquarium water for ammonia, nitrites and nitrates, they should be 0, 0, and less than 10 respectively; if they are not, then you should do an immediate 50% to 75% water change making sure that you add back clean water that is the same temperature as the old water. Add in the recommended amount of water conditioner according to the instructions on the bottle as well.
Also, check your PH to make sure that it has not crashed - the water change should help this as well.
Check for any sores, fungus, or wounds to research possible diseases and treatment options.
If they are still alive, then they could be under stress or suffering a swim bladder disease.
Fancy goldfish are the most susceptible for swim bladder disease. While they breed the fancy shapes into them, they also inadvertently breed for swim bladder defects. Sometimes odd swimming is a sign they are being overfed. The swim bladder vents into the digestive tract and it can get impacted with food. To prevent this, you could try soaking the food before putting it into the tank, or switch to live or frozen food.
It could be ammonia poisoning or "new tank syndrome." If you just got the fish or you just changed the water, then that could be what is making the fish ill.
Sick and probably dying
Usually, yes. I'm sorry.
because it cannot get out to lay them in the corner
He jizzed on himself.
It cold be time to get a new fish. I'm sorry for your loss
Usually at the bottom of the tank in the rocks.
No, first of all they should not be in the same tank, and secondly, goldfish are egg laying fish so they do not get pregnant
Its Dieing .
That means your fish is ill
because he is getting old and is of the egde of death
Goldfish do tend to laze upright on the bottom of a tank to rest, but if the fish is tilting, or has clamped fins, then this is likely to be a water quality issue. One fancy goldfish needs a 20 gallon aquarium on it's own, with good filtration, and weekly water changes of at least 50% to keep the toxins at safe levels. Since goldfish are also egg laying, which means they do not get pregnant, it's best to make certain that you have enough space for the number of goldfish you own (20 gallons for the first fish, 10 gallons for each additional goldfish - thus 30 gallons for 2 goldfish), increase the filtration on the tank, and follow a regular schedule of weekly water changes.
my blackmoor goldfish just sits at the bottom of the tank and does nothing is he dieing or just likes sleeping alot?
because it is dead :D
they are at the bottom of the tank,and are very still. you can see their eyes,but they are just sleeping.