Aerators are often used in livewells to keep the water oxygenated and the fish alive. There are a few different types of aerators, but they all work by bubbling air through the water. This increases the amount of dissolved oxygen in the water, which is necessary for fish to breathe.
There are a few different types of aerators. The most common type is an airstone aerator, which is simply a stone that diffuses air into the water. Another type is a battery-operated aerator, which uses a small pump to push air through a tube into the livewell. The last type is an electric aerator, which plugs into an outlet and pumps air into the livewell using an impeller.
No matter what type of aerator you use, it's important to make sure that it is properly sized for your livewell. If it's too small, it won't be able to keep up with the demand for oxygen and your fish will suffocate. If it's too large, it will waste energy and might cause turbulence in the water that can stress out your fish.