Do betta fish need an air stone in their tank?

An air stone isn't necessary in a betta fish tank so long as your tank has a proper filter. Separate betta fish tank pumps and air stones provide additional aeration but are not required if you have a filter with a pump. Tank setups vary, though, so consult your fish-savvy vet or hobbyist if you have questions.

What size air pump should I get for a betta fish tank?

If you have a filter with a pump, you likely won't need an air pump for your betta tank. However, if you have no other form of aeration, then choose one based on the size of your tank that has adjustable flow. Keep in mind that bettas dislike strong currents.

Is an air stone the same as a bubbler?

Air stones and bubblers have the same purpose which is to introduce air into water — however, they differ slightly. Air stones CREATE larger bubbles, louder noise, and can cause splashes. Bubblers CREATE smaller bubbles and integrate bubble distribution into the tank. Both an air stone and bubbler can lead to greater oxygenation.

Can fish sleep with an air stone on?

The bubbles and noises caused by air stones do not bother fish; therefore, they are able to sleep with them on. Air stones help with oxygenation, which can lead to a more restful sleep in some cases.