Green Menace

One plague of summer can frustrate  even the most diligent pond keeper – ALGAE.  Best known as long stringy algae to those who have suffered its presence in their ponds, this noxious form of algae thrives in the warm water full of nutrients that receives even modest amounts of sunlight.  Although algae is common to aquatic habitats, natural ponds do not have this particular form unless significant environmental problems exist, such as run-off containing fertilizers entering a pond.

Usually the typical fishpond that has high nutrients you can count on long stringy algae to show up each summer, and the worse the nutrient problem, the sooner it will appear.  Having lots of fast growing plants helps combat this algae problem, but they can take up so much of the ammonia and nitrate available.

Remove as much long stringy algae as possible.  It’s much much fun – truth be told.  This messy, unpleasant task has to be done.  It would be better if you had managed the pond in the spring, the perfect time to create a healthy aquatic environment for the fish during the summertime.  Once you have removed as much string algae as possible treat the pond with Green CleanAlgae Fix (by Pond Care) or Algaway (by MicrobeLift). Both Algae Fix and Algaway are similar but I tend to stick with all MicrobeLift Products since I know they have proven safe in my pond.  Pond Care Algae Fix is highly recommended by alot of pond owners.  The GreenClean works great also.  See the article on Green Clean.  After you treat your pond with the algae product next you would want to add MicrobeLift PL , active bacteria, which will help accelerate the decomposition of the dead algae so it will filter out.  Once you have the algae under control you can add a weekly dose to maintain. 

Having at least half the surface area covered with plants like water lilies, lotus and floating plants will help protect your water garden from summer-thriving algae by competing with it for nutrients.  Floating plants and submerged plants help combat this evil menace of the water gardener.

The main goal is to try and prevent algae from growing.  Aim to achieve a natural ecological balance in your pond, add more plants, and don’t overstock with fish.

7 thoughts on “Green Menace

  1. Carol RICH says:

    I AM GETTING READY TO CLEAN MY POND. IT ALREADY HAS ALGAE GROWING. I DO HAVE GOLDFISH THAT WINTER OVER IN THE POND. I WILL BE DRAINING THE POND TO CLEAN THE ALGAE. YOU DO NOT MENTION IF THE FISH CAN BE PUT BACK INTO THE POND WITH THE CLEANER. I WILL BE ADDING MY LILIES AND CAT TAIL PLANTS AFTER THE POND IS CLEAN. I WOULD APPRECIATE ANY INPUT YOU CAN GIVE ME. THANK YOU

    • dragonfly says:

      You want to make sure you have a good holding tank for your fish while your cleaning your pond. A childs small swimming pool works great for this. It needs to have a larger surface area rather than depth for the fish. Just take some of your present pond water and put into the holding tank. Keep them in the shade and out of direct sunlight. When you finish cleaning your pond and refill it you would want to add de-chlor to the water if not well water. Take your fish and float them in the pond once again as you would new fish. You can use a large pastic bag for this. Make sure you keep them in the shade again and out of direct sunlight while floating them until they get use to the change of water temperatures. If you plan on keeping the fish in the holding tank for any long period you would want to put a small pump in it. I hope this helps but if you have any other questions let me know.

  2. Tom Graham says:

    After 25 years of pond keeping I recently discovered a great way to get rid of string algae on water fall rocks and streams – Hydrogen Peroxide. This may sound scary but the stuff you can buy at the drug store is so diluted that it is very safe for the pond. I turn off the water fall, get a bottle of HP, climb up on the water fall and pore the HP all over the algae. Really drench it. Then let is sit for a few minutes and turn the waterfall back on.

    By the next day you will be amazed at how clean your water fall is. If you missed some, do it again. The best part is that it stays clean for quite a while. If you just pull and scrape off algae, it is back in days. With HP it kills the algae completely, so it can take weeks or more to get a foothold again.

    Enjoy your pond

  3. maggie says:

    I have done 3 doses of Algae Fix in the last month and now all the green stringy stuff is brown string stuff which I am guessing is a good thing. I have to clean my filter a couple of times a week. I am assuming it is mostly the dead algae floating around. My water is crystal clear and everything is healthy, so I guess I will just keep up weekly treatments!

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