No. Axolotls (Mexican walking fish) are carnivores and need a special diet. That is why specific foods are made and sold commercially for them. Goldfish on the other hand are omnivores and easier to feed.
When its dirty you need to change the filter.
ALL fish need filtration.
Food... Water... And a filter...
It never hurts to have a filter it will only improve your fish's chances of survival and decrease your need to clean.
they need a filter and i would only recoment a koi
It is best that all fish have a filter besides Betta fish. Betta fish don't need filters cause the filter pushes them over with their big fins. Goldfish should have a filter on there tank because they are often overfed. If you have a filter you won't have to change the water as often. The only fish that shouldn't have a filer in captivity are Betta fish.
Yes you do need a filter in your fish tank ifyou don't the tank will build up dirt and the fish will die. Also when you get a fish tank you need to clean it out then fill it with water then put the filter in and wait 24 hours. This helps to ensure that the tank is somewhat stable before adding fish.
The best family fish is either a blue geromie, a betta, or a guppie, or a gold fish. None of these fish need a filter.
no i do not think so" it will make the fish difficult to move about."
It never hurts to have a filter it will only improve your fish's chances of survival and decrease your need to clean.
Yes, every fish tank should have a filter, but depending on the kind of fish it can be exempt. If not an air bubbler is a good idea. The filter cleans the tank, along with putting oxygen in the water, and the air bubbler also puts necessary oxygen into the water.