Can you put a betta in tap water?
Beside this, how long should water sit before adding Betta?
In this regard, do you have to condition water for betta fish?
Making tap water safe for bettas is incredibly simple, you just need to add water conditioner beforehand. Even though water conditioner treats water very quickly, it's still best to let water stand in your tank for a day or two before adding your betta. The ideal pH for bettas is 7 or slightly more acidic.
If you do want to make tap water safe for your fish tank without using chemicals, you can leave it to 'sit' for 24 to 48 hours. During this time, it needs to be aerated to help boost the chances of the chlorine and other contaminants being removed.