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If fish live in the pond and they seem to spend most of their time near the waterfall, that's another sign that the rest of this water feature doesn't have enough dissolved oxygen and that the temperature is too stratified.

Even a Pond With a Waterfall May Require Additional Aeration to Prevent Negative Results

Many people don't realize that a waterfall in a private pond is usually not enough to aerate the entire pond unless it's quite small in size and shallow in depth. It has superb results where the streams of water lands and nearby where the surface is stirred up, but the far reaches of the pond stay smooth. Most waterfall ponds need devices like pond aerators and fountains to make sure there is enough dissolved oxygen, temperature consistency and circulation.

Check the Bottom of the Pond

Pond owners can learn whether there is enough aeration by investigating certain characteristics of the pond. They will want to check the bottom of the pond for excess muck and organic debris that would normally be broken down by aerobic bacteria and ongoing water movement. The bottom should be clear of this material, or nearly so.

What Are the Fish Up To?

If fish live in the pond and they seem to spend most of their time near the waterfall, that's another sign that the rest of this water feature doesn't have enough dissolved oxygen and that the temperature is too stratified. Temperature stratification is when the surface is too warm in summer and too cold in winter. Fountains, diffusers and pumps create more circulation so the temperature is relatively steady throughout the water. Pond owners may browse Living Water Aeration product inventory to learn more about this equipment.

The Appearance of the Water Surface

The appearance of the water is another signal as to whether there is enough oxygen and circulation. The surface should not be cloudy, covered by algae or littered with bits of organic debris. These are indications that the water is stagnant. It is attracting mosquitoes and helping them dramatically increase their numbers. It also may not smell particularly pleasant.

Multiple Devices

Even with a waterfall, multiple aerating devices may be necessary if the pond is large. Two diffusers could be set up at the opposite end, each placed a certain distance from the shore. Another possibility would be to have one diffuser at the other end and a floating fountain traveling about the surface. Those fountains are lovely and are available with different hues in the lighting if that might be appealing. Many products can be viewed at a website like LivingWaterAeration.com/pond-aerator/.

Waterfalls in a pond are aesthetically pleasing and also can be functional for aeration. Nevertheless, extra water circulation may be needed, and that can be accomplished with pumps hidden from view or fountains that add to the aesthetics.