From what I understand it is at least 2 gallons of water per inch of fish. More water is always better than less. Remember fish need room to move around and swim. The typical fishbowl one might buy from the store is not sufficient for most fish and as an aside, the shape of those types of bowls negatively affects the fish's respiration. Best to get a regular shaped tank (square, rectangle, etc.) and use more than enough water.
because fish need it to breathe. just like humans need air to breate. to fish, water is air.
yes, you need water for the fish. Water is good luck, fish is good luck. It's all good. Make sure the water is flowing, not dead water.
a gallon
they eat fish and drink water to survive
The price of a small fish bowl is about $24.99! A small fish bowl with nothing in it that holds a gallon of water, costs about $6-$10. You can get them at PetSmart or Walmart. Betta fish don't need a filter but other fish do. So, that will add on to the price of the bowl. Most people like to put something in the bowl, again, that will cost you extra. So, it really depends on how much you want or need in the bowl.
fish need air because they won't be able to breath if they didn't have air, and fish need air badly because they spend most time in the water. fish need air as much as we do.
Goldfish don't need salt because they are Freshwater Fish!
because fish need it to breathe. just like humans need air to breate. to fish, water is air.
Saltwater fish require salt water, and fresh water fish need fresh water, you can't mix them, or the fish will die. You need to look at each individual fishes needs as to what temp they need their water to be. There are some saltwater fish that can survive in fresh water, but it is not healthy for them.
They need the oxygen in the water to survive like fish and every thing else.
Depends on the fish.
It depends on the fish.
Fresh Water
You need to get out half the water and the fish clean the filter if you have on then put the fish back in and try not feeding them as much that's probably what is making it fog up.
Tap water. But to keep fish healthy you will need to add a chemical called Water conditioner or Water ager. This simply removes any chlorine or chloride from the water as fish cant live in chlorinated water.
no tropical fish need warm water
It cant, fish need water to survive.