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My pond has some filamentous algae growth around the edges. It’s too cold to treat, right? | Ponds & Lakes Q&A

Q: My pond has some filamentous algae growth around the edges. It’s too cold to treat, right?

Q: My pond has some filamentous algae growth around the edges. It’s too cold to treat, right?

Jeff – Hanahan, SC

A: Cold-weather algae. It’s the worst. And, unfortunately, you can’t treat it right now because the temperatures are too low. Your pond or lake’s water temps need to be higher than 60°F before you can start treating the green stuff with algaecide.

So until things heat up, you have two options:

  1. Rake It Out: If you can safely access and maneuver around your pond, grab your Pond & Beach Rake and get to work skimming and pulling that filamentous algae out of the water and up onshore.
  2. Add Some Color: Pond Dye will limit the amount of sunshine that reaches the algae. Without enough sun, the algae can’t survive. So toss a Pond Dye water-soluble packet or some liquid concentrate into your pond – and your problem is solved!

Once your water temperatures rise above 50°F, start adding PondClear™ & MuckAway™ to the pond. The beneficial bacteria will clear the water and start breaking down the debris and nutrients that are feeding that troublesome algae.

Pond Talk: How much time do you spend puttering around your pond or lake in the winter?

Protect Your Pond in All Seasons - Pond Logic(r) Pond Dye Quarts

Algae Growth During the Winter – Water Garden Q & A

Algae Growing in a Water Garden During Winter.

Q: I shut my water garden down for the winter, but I still see some algae growth. Can algae grow in cooler temperatures?

A: In some cases, a pond that stays clean and clear through the summer can blow up into an algal nightmare in the fall. Shutting down your watergarden ceases the flow-through characteristics of the pond. This reduces the amount of filtration that occurs both mechanically (i.e. skimmers) and biologically (i.e. filterfalls). Since there is less flow, it is a good idea to bump up the amount of bacteria in the pond by adding Seasonal Defense® Bacteria with Barley. These bacteria operate in cooler conditions and will greatly reduce the amount of nutrients in the water, and also contains barley straw to naturally help with the algae. Using Oxy-Lift™ Defense® to scrub down your rocks will also help to remove any debris build up.

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