There are several ways to aerate water for goldfish. Here are some common and effective methods:
Install an Air Pump: An air pump is the most common oxygen - increasing device. It injects air into the water mechanically, increasing the dissolved oxygen content in the water. Choose an air pump of the appropriate size to ensure that there is always enough dissolved oxygen in the water body.
Increase Surface Activity: Goldfish absorb oxygen from the air through the water surface. Maintaining surface activity can increase the chances of goldfish coming into contact with air. You can increase surface activity by setting up devices such as fountains or waterfalls.
Change Water Regularly: Fresh water contains more dissolved oxygen. Regularly changing part of the water in the fish tank (it is recommended to change 1/4 to 1/3 of the water volume in the fish tank at regular intervals) can introduce fresh oxygen - containing water and discharge the old water with more carbon dioxide.
Increase the Number of Plants: Aquatic plants and phytoplankton in the water produce oxygen through photosynthesis. Planting an appropriate amount of aquatic plants can effectively increase the oxygen content in the water.
Control the Amount of Feed: Excessive feed can lead to water quality deterioration and a decrease in the dissolved oxygen content in the water. Reasonably control the number of fish and the amount of feed, avoid over - stocking, and keep the water clean.
Clean the Filter Regularly: The filter is one of the key devices for maintaining water cleanliness. Regularly cleaning the filter can remove impurities and waste in it, keep the water clean, and at the same time increase the oxygen content in the water.
Make a Homemade Aerator: In the absence of an air pump, you can make a homemade aerator with a Coke bottle and two oxygen tubes. Insert the bottle mouth downward into the water, squeeze the bottle body to produce bubbles, and then release the bottle body. Repeating this several times can maintain oxygen supply for a few hours.
These methods can effectively increase the oxygen content in the living environment of goldfish, ensuring their health and vitality.