I DON'T have a filter and it's a 2 and a half liter tank? How often do I change it's water?How often do I need to change my water for a Betta?every week. and make sure you maintain the same temp when changing the water...that can shock him and kill him.How often do I need to change my water for a Betta?At least once a week, every 4th day is better. If you use tap water, don't forget to use %26quot;tap water conditioner%26quot;, so it's safe .How often do I need to change my water for a Betta?First you get a 20 litre heated and filtered aquarium.
then you do 25% weekly water changesHow often do I need to change my water for a Betta?If fish have to get moved out of a tank as often as weekly they do get very stressed out. I would recommend every fortnight the tank may get dirty but its better than having a stressed fish.
