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Should I clean my filter media or replace it? | Decorative Ponds & Water Gardens Q & A


Q: Should I clean my filter media or replace it?

Q: Should I clean my filter media or replace it?

Cindy – Dover, DE

A: Those plastic pads, BioBalls™ and Bacti-Twist® that live in your waterfall box, skimmer box and filter unit play a very important role in your water feature. The filter media’s surface is home to millions of beneficial bacteria, which are the biological filtration system in your pond.

Here’s a quick guide that outlines how to care for your filter media – and those tiny microbes.

  1. Clean Infrequently: Once or twice a year, or when your water flow is significantly reduced, inspect and clean your filter media. Rather than scrubbing it spotless with soap or harsh abrasives, gently spray it down with your garden hose, being careful to maintain as much of the beneficial bacteria as possible while blasting away the gunk.
  2. Replace As Needed: If the filter media looks worn on the edges or has gaping holes in it, replace it with some new media, like Matala® Filter Media Pads for extended life and performance, or with our standard reusable 2-inch filter pads, which are perfect for waterfall filters and skimmer boxes.
  3. Seed Some Bacteria: If you need to replace your media, you’ll need to inoculate it with beneficial bacteria. First, test your pond’s water temperature. If the water temperature is 40-50° F, add Pond Logic® Seasonal Defense® to the pond or dump it right on top of the media in your waterfall box. If it’s more than 50° F, seed the filter media with PL Gel and let it set for one to two hours before putting it in your filter unit.

This spring, it’s a great idea to check your filter media and make sure it’s in good working order. Doing so will save you time, hassle and money by getting your pond off to a strong start so you can avoid dealing with insufficient filtration later in the season.

Pond Talk: How often do you replace your filter media?

Easy to Clean and Extremely Durable = Matala(r) Filter Media Pads

2 Responses

  1. It will soon be time to clean up my Ponds, I have NO fish in either Pond, but I do have tadpoles and Frogs that I don’t want to kill when I’m cleaning them out. Are all the chemicals for ridding algae and leaf debris from the water completely “Safe” for Frogs and Tadpoles? Nothing is mentioned on labels , other than safe for fish and plants.

    • Hi Sherry – Yes, the chemicals for algae and debris are safe for frogs, tadpoles and wildlife when used in accordance with label instructions. As with any chemical application, ensure proper aeration is being used for at least 48 hours after application.

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