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If your fish pond is laid with geomembrane, then maintaining it and keeping it healthy should be a top priority, especially for the fish, flora and fauna in it. The entire ecosystem relies on you to keep its normal use function. To maintain a geomembrane fish pond, you must complete the following three things.
You need to aerate the pond. This is achieved by installing an appropriate aeration system that will keep the pond clean, crystal clear and balanced throughout the year. Aerators can come in the form of waterfalls, floating fountains and lake bed aerators, anything that keeps oxygen circulating in the water. It also helps prevent any decaying organic matter from changing, and decaying matter can lead to fish loss and algae growth. Algae growth only requires three things: nutrients, sunlight and warm water. This is why in summer, due to higher temperatures, ventilation becomes particularly important. Another good way to aerate the pond and remove nutrients that may cause algae is to use aquatic plants such as swamp hibiscus, water iris, cattails, water willow, reeds, and water snowballs. These floating plants
Islands can perform plant filtration (natural plant filtration) on water, making it healthier and less suitable for algae growth. They are also beautiful and will provide natural habitat for fish and other pond organisms.
Regularly remove all debris and dead vegetation from the pond, even if it means manually cleaning the pond with a pond rake. You may also need to treat your pond with natural bacteria to help break down any waste, feces or dirt. Natural bacteria products can also help reduce the amount of algae and aquatic plants, and help control odors. Another important step is to keep all livestock away from the pond! Feces from cattle, horses, etc. can easily contaminate the pond, and any large animal will definitely damage the pond's embankment.
Regularly check the pH value of the pond. Better every year or every season, especially when you see dead fish, green slime or cloudy or murky water. The required pH value for fish is between 6.5 and 9.5 (add limestone flakes to raise the pH value; sprinkle calcium carbonate to lower it). When the acidity and alkalinity of the water are balanced, all your aquatic organisms and plants will thrive. If you see a lot of dead fish, be sure to test the pH value before you do anything else. Another common culprit causing fish deaths is too many plants on the water surface, especially when it is hot, cloudy and calm outside. If more than half of your pond is covered by vegetation and algae, you will face the risk of massive fish deaths.
If your property is still in the fish pond planning stage, the most important part of a healthy aquatic environment is to equip your fish pond with a suitable geomembrane. This is a series of reinforced polyethylene products that are strong and specially formulated to last 20 years or more.
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