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I have a pondless water with some algae on the rocks, do I need a filter to clean it or is there something else I can use? | Decorative Ponds & Water Gardens Q&A


I have a pondless water with some algae on the rocks..do I need a filter to clean it or is there something else I can use?

I have a pondless water with some algae on the rocks, do I need a filter to clean it or is there something else I can use?

Matt – Howell, MI

For pond enthusiasts who are short on free time, we’re big fans of pondless waterfalls. Since they typically don’t have fish and don’t involve open bodies of water, there’s very little to maintain. Without fish waste, debris or muck to contend with, these beautiful features can add a lot to your yard – and require very little in return.

Occasionally, though, algae can form on rocks in in a waterfall. And unless you have a fondness for the green stuff, you’ll want to dispatch with it as quickly and efficiently as possible.

For some, biological filtration is a viable option. Since most pondless waterfalls rely on a basin for circulation, the installation of an appropriately-sized filter – and some filter media – will generally resolve any algae issues. But under the circumstances, filtration is rarely the simplest solution. At the Pond Guy, we strongly recommend the use of PondLogic® Oxy-Lift™ Defense® Pond Debris Remover. Oxy Lift™ is designed to break debris off rocks quickly and easily – without a lot of effort.

In fact, process couldn’t be much easier. Simply turn off the waterfall, sprinkle on Oxy Lift (be sure to avoid direct contact with any plants), and let it sit for ten minutes. If the algae are particularly well-established, light brushing can help to loosen things up. Once those steps are complete, simply turn the waterfall back on – and get the instant gratification of immediate results.

As an added measure to prevent recurrence of algae, a partial water change and an occasional basin cleaning goes a long way. So enjoy the limited free time you have. Your waterfall is waiting.

Pond Talk: How do you limit algae and debris build up on your waterfall?

Pond Logic Oxy Lift Defense Pond Debris Remover

2 Responses

  1. Is the Oxy-Lift treatment for a waterfall serving a small pond with fish and plants

    • Hi Hank,

      Yes you can use the Oxy-Lift on a waterfall serving a pond. Be sure not to apply directly to any plants and you may want to do the cleanup in the afternoon once you are done viewing the pond for the day as the oxy-lift will turn the pond a little milky for a few hours. Let it run its course overnight and the water should be clear again in the morning.

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