Lack of space and proper filtration
One of the most common mistakes when keeping fish in a bowl is not providing them with enough space and proper filtration. Bowls or small containers do not have enough volume to maintain a healthy environment for fish. Without adequate filtration, the water quality quickly becomes poor, leading to high levels of ammonia and nitrites, which can be fatal for fish.
Overfeeding
Overfeeding is another common mistake that can have negative consequences for fish kept in a bowl. Fish are often fed more than they need, and uneaten food can quickly decay, contributing to poor water quality. It is essential to feed fish in small quantities, only what they can consume in a couple of minutes, and avoid overfeeding them.
Lack of oxygen
Fish need oxygen to thrive, and bowls do not usually provide enough oxygenation. The small size of the container and the lack of surface area lead to poor gas exchange. Without adequate oxygen, fish can’t breathe correctly, and their health can suffer. Providing proper aeration, such as an air stone or a filter that incorporates an air pump, can significantly improve the water quality and the health and wellbeing of the fish.
Ignoring water changes
Another mistake is not performing regular water changes. Fish excrete waste, causing the water quality to deteriorate over time. Without water changes, the accumulation of waste can cause a build-up of ammonia, nitrites, and nitrates. It is recommended to change 25% to 50% of the water every week to maintain a healthy environment for the fish.
Choosing the wrong fish species
Lastly, choosing the wrong fish species for a bowl is a mistake that many people make. Not all fish can thrive in a small container without proper filtration and oxygenation. Goldfish, for example, are often sold as “bowl fish,” but they require a lot of space and filtration to stay healthy. Betta fish are a popular choice for bowls due to their vibrant colors and ability to breathe air from the surface, but they still need enough space and proper care to thrive.
