“There is no angry way to say bubbles”. As humans, we delight in the small circles and giggle with glee when we make some. But do our tank friends also have similar love for bubbles?
Bubbles: How important are they?
One of the benefits of having bubbles in a fish tank is that bubbles increase the amount of dissolved Oxygen in the water. Having sufficient dissolved Oxygen is important for the survival of fish in the tank. During respiration, fish take in Oxygen and release carbon dioxide. In the wild, water bodies have currents that bring Oxygen into the water. Such movements need to be recreated in the home aquarium. A fish tank air pump, wands and air stones create bubbles that remove undesirable gases from the water. As the bubbles rise, they tend to carry carbon dioxide with them. When the bubbles pop on the water surface, the carbon dioxide leaves and the water absorbs Oxygen from the environment.
Do fish like bubbles in their tank?
Considering that bubbles help the aeration system in the tank, then, yes, fish like bubbles in their tanks. Ever seen a fish swim directly into a stream of bubbles created by air stones and play in the bubbles? I have and each time I see this, the fish seem to be having fun in the bubbles. Most fish seem to enjoy the current or movement from air bubbles.
Should I get worried?
If the bubbles pop shortly after forming, then they are perfectly normal. But, if they form a layer of foam on the water surface, they could be a problem. Care should be taken not to use household sponges or buckets to clean your aquarium as foam from soaps or cleansers can be fatal to fish. Also, too much protein in water can coat the bubbles and prevent them from popping. Protein foam can be an indicator of a dirty tank.