Do You Need a Pump for a Fish Tank

An air pump is NOT required for this purpose, as long as your tank maintains adequate water movement together with surface agitation. This is generally the case if external (e.g., box or cannister) filters are used. Second, air pumps can be used to force water through a filter (e.g., sponge or corner filter).

What fish can live in a tank without a pump?

• Betta fish (Use a heater)
• Guppies.
• White Cloud Minnows.
• Blind Cave Tetras.
• Salt and Pepper Corydoras.
• Zebra Danios.
• Ember Tetra.
• Pea Pufferfish.

How do you oxygenate a fish tank without a pump?

One of the easiest ways to aerate the water in your aquarium without a pump is to use a pitcher or cup. Simply fill a pitcher or cup with the aquarium water, lift it up nice and high, and pour the water back in. The water will pick up oxygen on the way down to the tank, thus inserting oxygen right into the water.