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Technically, most fish can survive without pumps and air fulters in a large outdoor pond with a large surface area for ixygen to enter the water and plants to clean the water. However, if keeping them as pets you should always provide pumps and filters, ir they will live very short lives. Otherwise it would be similar to keeping a human in a dark crate with little oxygen and no waste disposal. do not belive that betta fish can live in these terrible conditions, as it is unfair to them
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoPlastic fish does not need a filter.
No fish in captivity can live without a filter system.
You must understand the reason why a filter is needed. It is for nitrogen cycle in the aquarium. A fishless nitrogen cycle must be done with filter running, before adding the fish at all. Once the filter is established, it removes ammonia (a poisonous chemical) from the water and turns it into nitrate/nitrites, which are removed with water changes. If there isn't a filter, the ammonia stays in the water and slowly kills the fish.
Wiki User
∙ 14y agoAll fish do not require an air pump. But it is highly recommended so that it can breathe
Wiki User
∙ 14y agoEddy will disagree with me, but Betta fish can survive very well without a filter.
Wiki User
∙ 11y agoYou should always have some sort of aerator in an aquarium to provide additional oxygen to the fish
Wiki User
∙ 14y agoGold fish.
Anonymous
what fish don't need a air pump
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How do you know when you need to change your fish filter?
When its dirty you need to change the filter.
Does a Corie fish need a tank with a filter?
ALL fish need filtration.
Can a Betta fish live in a filtered tank?
Goldfish dont have to have a filter but they need water conditioner like all fish.Fish can survive without a filter but they are always good to have because you dont have to clean it out as often
What does a fish need?
Food... Water... And a filter...
Do Mexican walking fish need a filter?
yes they do
Does a 40 gallon fresh water fish tank need a oxygen filter?
It never hurts to have a filter it will only improve your fish's chances of survival and decrease your need to clean.
What does an African butterfly fish do?
They float on the surface near still and occasionally eat top dwelling fish. (Dont get hatchet fish etc.) They will swim elegantly to catch food.(Live food and flake food) They will need a silent filter. THEY ARE AWESOME!
What are some types of fish that are affordable to take care of dont need a heater and will stay alive for a good amount of time with good care?
guppies
Is a filter good on a fish bowl?
it is always good to get some kind of filter for your fish, but natural ponds dont' always need one. the filters will keep out some bad bacteria though, and keep your fish healthy longer, and allow you to actually see them. goldfish are very hardy and can withstand quite a bit.
Can you have a pleack in a fish tank with gold fish?
they need a filter and i would only recoment a koi
What kind of fresh water fish don't need a heater other than goldf fish?
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.
What types of fish do they eat?
You need to specify who 'they' are.
