If you don't have an aerator, you need to change the water very other day at least--but take care not to stress the fish in doing this. The easiest solution is to get a proper aerator.
It is recommended to change the water in a fish bowl at least once a week to maintain a healthy environment for your fish.
No. Water is oxygen to them so they need to be in water in the plastic bowl.
you should change it every week so it will always be clean.
To ensure the health of your goldfish, it is recommended to change 25-50 of the water in the bowl every week. This helps maintain water quality and keeps your fish healthy.
1 gallon tanks & smaller need to be changed/cleaned every 5 days.
When you are changing the water in a fish bowl, you have to empty cup ot bowl with water in it. Then, put it into clean water.
To ensure the health and well-being of your fish, it is recommended to change the water in your fish bowl at least once a week. This helps maintain good water quality and prevents the buildup of harmful substances that can be harmful to your fish.
When you first change the water in your aquarium , there is lots and lots of waste flowing around in the water from the gravel in the bottom of the tank. it seems that your beta is just getting oxygen from the top of the water. hope this helps
A geckos water bowl should consist of clean water at all times. This means the bowl must be changed and clean every day. In most cases a water bowl will evaporate if a heating lamp is present but if not, that water will turn stale, possibly grow mold and is possible to make your animal ill. The animals habitat should be cleaned monthly at a minimal.
To change the water in a fish bowl, carefully remove the fish and any decorations. Pour out most of the old water, leaving a small amount to keep the beneficial bacteria. Refill the bowl with fresh, dechlorinated water at the same temperature as the old water. Reintroduce the fish and decorations back into the bowl.
physical change
About every 2-3 days. Cats don't need fresh water every day. If you have a water bowl set up outside, then I'd probably change it more often. But in the house, every 2-3 days or when you notice it is getting empty is ok.