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Why are water changes important? | Decorative Ponds & Water Gardens Q & A

Q: Why are water changes important?

Q: Why are water changes important?

Shirley – Warr Acres, OK

A: It’s nice to open a window on a warm spring day and let the fresh air flow through your house, right? Well, a partial or complete water change in your koi pond or water garden is the same thing: It freshens your finned pals’ environment, making them happy and healthy.

Here are five reasons why water changes are so important to your fish, plants and other aquatic life:

  1. Nutrient Removal: Muck and debris buildup happens in just about every water feature. A water change manually removes any excess nutrients and chemicals like nitrates, phosphates and ammonia that can be harmful to fish and other underwater critters.
  2. Healthy Fish: Fresh, clean water means improved water quality, which ultimately promotes your fishes’ health. Just as you need oxygen to thrive, your fish need clean water to thrive. Their well being is directly related to the liquid environment in which they live.
  3. Algae Control: Pea soup and string algae feed on all that decomposing waste, which they use as fertilizer. By removing those excess nutrients in the water column with a water change, you can discourage the growth of algae.
  4. Fights Foam: Foam forms when excess organic material has accumulated in your water garden. When this nutrient-laden water pours down your waterfall, the air and water collide, causing the proteins and other organics to be trapped inside bubbles rather than turning into ammonia and nitrites. A water change will quickly reduce that foamy buildup.
  5. Clears Water, Stabilizes pH: A water change will also improve the appearance of cloudy water and maintain pH levels, resulting in a pristine pond filled with healthy fish, lush greenery and clean water.

To keep stress levels down among your fish, we recommend doing partial water changes as soon as water temperatures reach 50° F. In addition, be sure to add some Stress Reducer PLUS and LiquidClear™ to your water. The Stress Reducer PLUS forms a beneficial slime coat on your fish and makes tap water safe for them. The LiquidClear’s™ beneficial bacteria helps to digest dead organics in the water, making it crystal clear.

Pond Talk: How often do you do water changes in your koi pond or water garden?

Builds Protective Slime Coating - Pond Logic (r) Stress Reducer PLUS

I top off my pond for evaporation, so why do I need to do water changes? | Decorative Ponds & Water Gardens Q & A

Q: I top off my pond for evaporation, so why do I need to do water changes?

Q: I top off my pond for evaporation, so why do I need to do water changes?

Joan – Bethesda, MD

A: Topping off your pond with fresh water isn’t quite the same thing as a water change. Think of it like the oil in your car: You may “top it off” when the lubricant gets low, but to keep your motor humming, you need to do a complete oil change every 3,000 miles or so to remove the dirty oil that’s full of sludge and combustion by-products.

It’s the same idea with the water in your pond.

Adding water every week or so to replenish any lost from evaporation is certainly important—but it does nothing to remove the sludge, or algae-feeding nutrients, in your pond. As the water evaporates, the gunk stays behind and concentrates. Your filter does a good job removing the pollutants, but unfortunately it’s not always enough.

So why do water changes?

  • Remove the buildup of nutrients, like nitrates and phosphates
  • Promote fish health, as their well-being is directly related to your water quality
  • Reduce algae blooms

To keep buildup under control, we recommend you change 10 percent of your water every week, or 20 percent of your water every two weeks. Many pond owners use a spare pump and hose to draw out the dirty water and send it down the drain. If you have a pressure filter, using its back flush feature is the perfect way to make the water change.

If your tap water has chlorine or other heavy metals, don’t forget to make it safe with Pond Logic® Water Conditioner. It removes chlorine, destroys chloramines and detoxifies heavy metals. One ounce treats 500 gallons.

In addition, make sure you add some beneficial bacteria to the mix, like Pond Logic® Nature’s Defense® or LiquidClear™, because when you change the water, some good stuff goes out with the bad! Both products contain microorganisms that instantly activate once they hit the water, multiplying every 20 to 40 minutes as they digest organics in your pond.

Make water changes a regular part of your pond-maintenance routine.

Pond Talk: What water-change routine has worked well in your water garden or koi pond?

Neutralize Harmful Water Contaminates - Pond Logic(r) Water Conditioner

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