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An "airstone" is not neccessary. All species of fish must have their water looked after properly if they are to survive. The basic rules of successfull fishkeeping are. :- 1 inch of fish needs at least 1 gallon of water. :- Every tank must have a permanently running filter. :- Every tank must have at least 50% of its water replaced every week. An 'airstone' will simply create a current in the tank and a visual effect but it will not improve the water much at all. If the air pump is connected to a biological filter however, then you will have a real benefit from using the air pump.

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Q: Is an airstone needed in a freshwater aquarium?
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Related questions

Does an airstone have to be installed to anything?

An airstone needs to be attached to an airline which is connected to an air pump.In a freshwater aquarium, air wands, stones or discs are important as they add oxygen to the water; this is even more important in a tropical tank as warmer water contains less oxygen.


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An airstone is a piece of aquarium furniture whose purpose is to diffuse oxygen gradually into a tank, eliminating the noise of conventional air filtration systems.


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