How often to change water tube water

If you are using one of those water bottle things... do you still have to change the water every day?? I have always used a food dish or a bathtub that I fill up with water so they can bathe and drink from it.. and i change it once or twice a day..
Which do you guys use and or perfer??? thanks

 

I use a fountain style water bottle that I change twice a day (once in the morning and once in the afternoon).

Even if you're using a water bottle it's still necessary to change the water atleast once a day because bottles are a great place for bacteria to grow.

 

I totally agree that the water should be changed daily, i change mine twice a day aswell.
I have spares aswell as i scrub and sterilise my water and food dishes as i worry about bacteria i worry too much when it comes to my animals.

Mike

 

You should only change the water everyday if you have the cup.

 

Even with a cup the water should be changed twice a day as bacteria can start to form especially if the weather is warm.

Mike