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Does a fish tank need a filter?

Updated: 10/7/2023
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Wiki User

12y ago

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Absolutely. In extreme cases you can filter and clean the water to an extent where you will kill off all of the good bacteria in the water that help the fish to thrive. You will then have to counter act the effects with over the counter nitrate drops or something similar. Alot of times tap water can be "too clean" and not contain all the vital Ph balances to keep fish healthy.

hi i have a fluval 304 external filter, filtering a 96 liter tank is it 2much ??

You can not filter a tank too much. The more filter media you have, the better your tank water will be. You can however create too much current for the species of fish you have in there. Most of the larger and better power filters have some method of turning them down to reduce flow.

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14y ago
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12y ago

What do ya think! ya know one thing that bugs me, people who are really stupid. Of coarse you need one if you don't have a filter the the tank goes really dirty and then the fishes will die and whoops, there goes 20 bucks for nuttin'. It happened to me before and i'll tell you know you don't want to know what the wife did.' I'll tell ya what, go out and by yourself one of those filters and you'll save money and you fish. It works, it saves innocent fish and it'll keep yo tank spick and span, just leave it to the filter.

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Q: Does a fish tank need a filter?
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Does a Corie fish need a tank with a filter?

ALL fish need filtration.


Should you always keep a filter on in a fish tank?

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.


Do you have to have a filter with fish with puffy eyes?

Filter a fish? Do you mean filtering a fish's tank? Well you have to filter any fish's tank.


Can you have a pleack in a fish tank with gold fish?

they need a filter and i would only recoment a koi


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.


Does a 40 gallon water 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.


Do you need an filter in a 1.5 Gallon fish bowl?

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.


Why is a filter needed for a fish tank?

The filter removes the fish waste and some of the other impurities.


What happens if there are no bubbles in your fish tank?

Then your filter is not on.


What is used to sanitize a fish tank?

A filter...


What power filter should i use to filter a 60l fish tank?

Different species need different conditions and water currents. I would get a filter that will turn over the capacity of the tank at least once every hour.


How may time do you need to clean the fish tank?

Once to twice a week if you have no filter or if you don't but any conditioners. If you do have a conditioner or filter follow its instructions.