Can I keep guppies without air pump

Fish can survive about two days without an air pump in completely still water. However, with the right kind of filter producing lots of surface water movement, an air stone may not be required at all. (source)
Guppies can survive just fine without an airstone, providing there is another source of water circulation and surface agitation in the aquarium. This circulation and agitation usually come from the aquarium filter, but can also be derived from a powerhead or aquarium circulation fan, blowing water around in the tank. (source)
Here are the simple steps: Take any type of clean cup, pitcher, or another container, scoop out and fill it with aquarium water. Hold the filled container some distance above the aquarium, and pour the water back into the tank. Repeat this process numerous times. Jan 30, 2019 (source)
No, you should not keep guppies in a fish bowl. In fact, you should avoid keeping any type of fish in a glass bowl. Jan 8, 2022 (source)
There’s a reason why nearly all fish aquarium guides recommend using an aquarium filter. While technically it is possible for guppies to survive without a filter, it’s best if you have a filter system installed in your aquarium. Jan 9, 2022 (source)
So Which Fish Can Live In A Bowl? Betta fish (Use a heater) Guppies. White Cloud Minnows. Blind Cave Tetras. Salt and Pepper Corydoras. Zebra Danios. To get a few more ideas for smaller bowls that are 2.5 gallons or less. … Ember Tetra. Pea Pufferfish. More items… • Apr 3, 2019 (source)
So, Do Guppies Need A Filter? If you plan on keeping guppies then you should definitely add a filter to their tank. This is especially important for smaller tanks which can become a lot filthier a lot quicker. While you can get away with not having a filter in your tank it’s definitely not recommended. (source)