Clean water, free from toxic substances and waste, is an essential requirement for maintaining the health of koi fish.
A koi fish pond can be cleaned in two steps - one is the regular maintenance and cleaning, and the other is the complete seasonal cleaning that can be done once in a year. For a complete cleaning, you have to remove the fish, and then drain and refill the entire pond.
Koi Pond Care
Do not overfeed the fish as the extra food can deposit at the bottom of the pond and would decay and decompose later, producing toxic substances. Remove the excess food daily from your pond using a fine mesh net.This net can also be used for removing floating debris, like leaves and other plant parts.
Install a mechanical filter to remove any kind of waste, including algae and insects from the pond. Biological filters can help convert the toxic substances to harmless substances by using a filter media that contains anaerobic bacteria.
Barley straw extract is an environmental-friendly option to control algal growth in a pond. Baking soda and salt can be used for adjusting the pH and nitrate level of water. Observe the fish occasionally to look for any abnormality like spots or discoloration. Be sure to keep in mind that chlorinated water is very harmful for fish.
For regular cleaning, you can use a fine mesh net, and install cleaning equipment like mechanical or biological filtration systems and a bottom drain. Despite all these measures, the pond is bound to become dirty and muddy over a period of time. Koi fish are one of those fish which produce the maximum body waste.
Clean and inspect all the internal parts of the pond carefully, especially the tubes and the pipes.
Koi fish are very sensitive to slight changes in the pH, temperature, and chemical balance of the pond water. Therefore, an accumulation of waste and decayed food particles can have a severe impact on their health. Koi fish ponds should be clean, and the water should be clear. Otherwise, the fish can contract many diseases.