Goldfish produce ALOT of waste so a fish bowl is really to small for any goldfish (even if they're small now, they will grow). If able to, the fish should be moved into a 10+ gallon tank (the rule is 10-15 gal for the first fish, 10 additional gallons per fish addition). However, if you are unable to move the fish to a bigger tank, it is suggested that the water in a fish bowl is changed every other day so the fish is in clean water. Think of it this way, it would be like you living in your bathroom for the rest of your life without a toilet to use and no way out... pretty disgusting and uncomfortable if you ask me.
No, a gold fish is clean
Tetras (unlike goldfish), do not excrete a lot, so in essence they would be "clean" fish.
Zero, goldfish need very clean cool water and are very dirty fish.
Keeping the water clean in your goldfish aquarium will not only make your fish more likely to spawn but will also greatly improve the health of your fish and any potential fry, so yes you should keep your goldfish's water clean for them to spawn.
no it isn't really, but you have to clean it regularly to make sure it is very clean for them
Minnows and goldfish are often sold as 'feeders'.
Minnows and goldfish are often sold as 'feeders'.
It is not recommended. Goldfish are cold water fish while tropical fish are warm water fish. Also, goldfish need to be fed more often than most tropical fish and they produce elevated amounts of waste which can be detrimental to fish not accustomed to it.
Never, just stick to fish food.
It is a parasite. Feeder goldfish often have parasites, and if you have one that survives, then these lumpy areas often appear as the fish gets larger.
If a gold fish is left overnight stays the same unless you don clean fish tank. If you dont clean the fish tank its turns blue and within 2 days it dyes
you should never clean your fish tank with washing -up liquid or eny thing like that only a sponge that is new and water