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My pond was a mess, so I drained and refilled it. Now I have algae. What do I do? | Decorative Ponds & Water Gardens Q & A

Q: My pond was a mess, so I drained and refilled it. Now I have algae. What do I do?

Q: My pond was a mess, so I drained and refilled it. Now I have algae. What do I do?

Beth – Benton, AR

A: Sometimes it’s just easier to start from scratch – particularly if you have a disaster in your pond.

A complete water change rids your water feature of excess organic waste, clears up murky water (briefly, as you’ve discovered) and gives you a chance to start over with a clean slate. Those are some worthy benefits!

The urge to purge, however, has its drawbacks. If you’ve completely drained the water from your pond and scrubbed everything clean, you’ve also stripped a lot of the beneficial bacteria that was working to help clean the pond in the first place! The algae that’s growing now is most likely due to fish waste and a lack of mature filtration.

To return your pond to its crystal-clear state, here’s what we recommend.

  1. Decide how bad it really is: Believe it or not, some algae in your pond is natural and beneficial as it helps filter the water. Make sure your expectations are in line with the reality of having a pond, and then let the pond take its natural course with a little help from you. But be patient! The Nitrogen Cycle will eventually help clear things up naturally – but it takes time. If your water quality begins to suffer a few weeks in, think about doing a partial water change and/or following these additional suggestions.
  2. Treat if necessary: If the algae is becoming excessive, treat the algae growth with an algaecide in the morning or evening when water temperatures are cooler. In addition, make sure you have adequate aeration to ensure oxygen levels stay high for your finned friends.
  3. Seed Your Filter Media: To kick-start the regrowth and reproduction of beneficial bacteria in your pond, add some DefensePAC® to your pond and filter. The package contains Nature’s Defense®, which instantly begins breaking down dead organics in the pond; Clarity Defense®, which helps clear debris suspended in the water column; and Muck Defense®, which attacks buildup on the liner, rocks and gravel.
  4. Condition the water: When you refill your pond with water, be sure to use Stress Reducer PLUS to condition the water and reduce fish stress. It helps your fish form a beneficial slime coat that’s lost from stress or handling, and it also makes tap water safe by working to remove chlorine, chloramines and heavy metals.
  5. Learn from the situation: Instead of letting your pond fall into its “mess” state again, figure out why it wound up in that situation in the first place. Are there too many fish living in your pond? Is your filter too small for your pond’s volume and fish load? Do you need more plants growing in and filtering the water? Does your pond receive too much sun or rain runoff? Dig down to the root cause of the problem and correct it!

In the future, if you find your pond’s water quality waning, consider doing a partial water change instead of a complete water change. A little fresh water will go far to clear things up without having to start completely over!

Pond Talk: Have you ever had to restart your pond from scratch?

Immediately Remove String Algae - CrystalClear® AlgaeOff®

How often are you really supposed to wash out your filter? | Decorative Ponds & Water Gardens Q & A

Q: How often are you really supposed to wash out your filter?

Q: How often are you really supposed to wash out your filter?

Al – Greenville, RI

A: The filtration system in your pond is made up of two parts: the mechanical filter and the biological filter. They both clean and clarify the water, but they do so in very different ways and require very different cleaning regimens to keep them optimally operating.

The Mechanical Filter

The skimmer or pump sock make up your mechanical filter. Able to function at all temperatures (as long as the water is liquid), their main purpose is to catch larger debris, like chunks of algae, leaves, foliage and other things that blow into your pond and settle on the water surface. These items are collected in a mat or debris net/basket as the water passes through the mechanical filter, which then protects the pump from clogging.

Cleaning the mechanical filter is easy. You simply remove the mat or debris net/basket, dump out the debris and rinse it with a garden hose. This can be done as often as you like or as needed when you see the water flow slow down. In fact, checking it often is a good idea, particularly in spring and fall when debris tends to collect in a pond.

The Biological Filter

Your waterfall box, pressurized filter and in-pond filter filled with beneficial bacteria-covered filter media make up your biological filter. Their main purpose is to break down tiny, suspended debris, resulting in crystal clear water.

Here’s how it works: Unlike a mechanical filter that physically removes debris, a biological filter works at a microscopic level. Aerobic beneficial bacteria colonize and flourish on the surface area of filter media – like BioBalls™, mats and the like. As the water passes through the filter media, the bacteria feed on the debris and remove it from the water. Because the beneficial bacteria are living microorganisms, they function best when water temperatures are near or above 50 degrees Fahrenheit when they’re alive and kicking.

You don’t really “clean” a biological filter at all because you want to retain as much of the beneficial bacteria as possible. In the early spring, perform a cleanout and seed with natural bacteria like Microbe-Lift® PL Gel or Pond Logic® Seasonal Defense® to give your filter a fresh start. Throughout the season, do a mild rinse in a bucket of pond water only when the water flow begins to decline. Each time to clean or rinse your filter media, add a dose of Microbe-lift® PL Gel or bacteria from the Pond Logic® DefensePAC® to re-seed the bacteria and replenish any bacteria loss.

Though it may be tempting, don’t power wash or swap out filter media mats. This strips the beneficial bacteria, which may take weeks to replenish! In the meantime, algae will feed on the unfiltered nutrients in the pond water, and you’ll see your water quality diminish as fish waste accumulates – which is something you don’t want!

Pond Talk: What’s your mechanical and biological filter cleaning routine?

Promote Healthy Filters - Pond Logic® DefensePAC®

If I can’t do a big spring cleanout on my pond, what is the best way to get the debris out of the pond? | Decorative Ponds & Water Gardens Q & A

Q: If I can’t do a big spring cleanout on my pond, what is the best way to get the debris out of the pond?

Q: If I can’t do a big spring cleanout on my pond, what is the best way to get the debris out of the pond?

Maggie – Amherst, OH

A: An annual spring cleanout is an important chore when you own a backyard pond. It’s when you remove all the decaying organics that collected over the winter, trim back dead foliage, kick on your filtration and aeration systems, and generally spruce things up around your water garden wonderland.

But what if your pond was well-sheltered and protected from leaves and debris, or you live in a temperate climate where a total pond shutdown was unnecessary? Or what if you simply don’t have time to dedicate to all that cleaning and maintenance?

Well we have some shortcuts for you. Though it may be better in the long run to do a thorough cleanout at the start of the season, these five tips will cut down the time it takes to do your spring chores.

  1. Do a Partial Water Change: To help remove some floating and suspended debris, do a partial water change. Let 10 to 20 percent of your water drain from the pond, and add fresh water along with some Pond Logic® Stress Reducer PLUS to remove heavy metals and prevent your fish from getting too stressed.
  2. Add Some Shine: Oxy-Lift™ Defense® will quickly shine up your waterfalls and shoreline rocks. It’s simple to use: As you’re doing your partial water change, sprinkle Oxy-Lift™ Defense® on scum-covered rocks, streams and liner before you refill your pond. In just 24 hours, you’ll see the gunk break free with no scrubbing at all!
  3. Vacuum Debris: Use your ClearVac™ Pond Vacuum to easily suck up gunk, sludge and decaying organics on the pond bottom. It has four different attachments – gravel, string algae, narrow and wide – along with extension tubes, so you can vacuum almost any surface. For debris larger than 3/8 inch, simply pull out your Collapsible Skimmer and Fish Net and scoop it out.
  4. Add Seasonal Defense®: To break down debris that your pond vacuum missed, add some Seasonal Defense® beneficial bacteria to the water. The microorganisms, which are designed to work in cooler temperatures, will break down leaves and sediment that have collected over the winter. It also kick-starts your pond’s biological filtration system, priming it for summer.
  5. Rinse Your Filter Media: Finally, remove your filter media and give it quick rinse with your garden hose to break up and wash away any accumulated gunk. No need to scrub it too thoroughly; the bacteria living in the pads or BioBalls™ will come back to life once temperatures rise.

Of course, for a truly healthy pond, we still recommend a complete cleanout. We’ll describe those chores in depth over the coming weeks. But for now, this quick fix will get the debris out of your pond, giving it a facelift for spring soirees.

Pond Talk: What shortcuts do you use to skirt spring chores?

Reduce Timely Pond Maintenance - The Pond Guy® ClearVac™ Pond Vacuum

I’ve used lava rock in my filter for years. Are bioballs really that much better? | Decorative Ponds & Water Gardens Q & A

Q: I’ve used lava rock in my filter for years. Are bioballs really that much better?

Q: I’ve used lava rock in my filter for years. Are bioballs really that much better?

Dana – Altadena, CA

A: The media you use in your filtration system matters. Just think about its purpose: To house billions of beneficial bacteria and other microorganisms that keep your pond alive, crystal clear and algae-free. Thanks to their ample surface area, both lava rock and bioballs will work, but bioballs have some benefits over the rock. Read on to learn more.

Lava Rock’s Limitations

Lava rock – that igneous rock that’s formed as an erupting volcano’s molten lava cools and hardens – is very porous. When chunks of it live in your filtration system, you’re providing a lot of surface area for those beneficial bacteria to colonize and grow. That’s what makes it such a great filter media.

It does, however, have its drawbacks.

  • Clogged Holes: Over time, the porous rock can become easily clogged with muck and debris. Once the holes and pockets are clogged, they can become very difficult to clean out – which ultimately creates less overall surface area.
  • Hard Water: Lava rock naturally contains a variety of minerals, including iron and magnesium, that could affect your water’s pH, making it harder. Hard water could make it more difficult to treat algae that forms.
  • It’s Heavy!: They may be porous chunks of rock, but hefting bags of it takes some strength – particularly when its wet and full of gunk.

Benefits of BioBalls

Bioballs, like The Pond Guy® BioBalls™ filter media, are plastic spheres made up of dozens of thin rods that provide plenty of surface area for beneficial bacteria to thrive. Two hundred of the bioballs in a mesh bag will filter about 1,000 gallons of water in a pond with minimal fish.

Compared to lava rock, bioballs have some definite benefits.

  • Easy to Clean: Bioballs can also become clogged, by they’re easy to clean. Just rinse them off with water from your pond and you’ll be good to go.
  • Indefinite Lifetime: Because they’re made from long-lasting material, bioballs will not degrade and will function equally well year after year.
  • Shape Shifters: The bioballs’ round shape allows them to more easily conform to any filter, no matter its shape.
  • Lightweight, Easy to Handle: Each one of these tiny, 1 1/2-inch plastic spheres weighs a scant 0.3 ounces; 200 of them weigh a whopping 3 1/2 pounds. They’re easy to deposit and remove from your filter thanks to a mesh filter bag.

Consider making the switch from lava rock to bioballs. You’ll see better results and you’ll need to do less maintenance. What’s better than that?

Pond Talk: Why do you prefer bioballs over lava rock?

Lightweight & Easy to Clean - The Pond Guy® BioBalls™

The string algae seems to grow in just a few hours in my stream. What can I do? | Decorative Ponds & Water Gardens Q & A

Q: The string algae seems to grow in just a few hours in my stream. What can I do?

Q: The string algae seems to grow in just a few hours in my stream. What can I do?

Edith – Marion, IN

A: String algae. It seems to just grow and grow, leaving a tangled mess of green slimy stuff in your stream and water garden. Like other types of algae, string algae thrives on sunlight and excess nutrients like fish waste and decomposing organic matter in the water. If you want to get rid of it, check out this five-step plan designed to get your string algae problem under control.

  • Add Plants: Water lilies, water hyacinth, water lettuce and other floating aquatic plants look much nicer than algae, right? These ornamental plants will compete for the food source algae uses for growth, so plant away! A simple rule of thumb is to have 60 percent of your pond covered with submerged, floating and marginal plants.
  • Ration Fish Food: Those pellets and sticks are necessary to feed your finned friends, but keep in mind that fish food adds nutrients to the water in two ways: as wasted food that the fish don’t eat, and as waste after the fish digest it. Monitor how much your fish actually eat and cut back if possible.
  • Pump Up Filtration: If your filtration system isn’t powerful enough to handle your pond’s total fish load, you’ll wind up with burgeoning algae growth and, in worst-case scenarios, lethal levels of ammonia – neither of which you want. Many filters on the market are rated for ponds containing no fish or minimal fish, so get a filter that is rated for at least two times the water volume of your pond.
  • Turn Up Aeration: Beneficial bacteria, like those found in the DefensePAC®, naturally break down fish waste, but they need oxygen to thrive and reproduce. By adding a PondAir™ Aeration System, you’ll boost the oxygen in the water, increase your bacteria levels and reduce the nutrient load, thereby reducing algae growth.
  • Use Oxy-Lift™ Defense®: As needed throughout the season, use Oxy-Lift™ Defense® to lift string algae from waterfalls, streams and rocks. Simply shut down your waterfall, sprinkle the powder directly onto debris-covered areas and watch it instantly start foaming. In 24 hours, it will have removed the algae. Be sure to pull out any debris with a pond net.

String algae may seem like a never-ending battle, but you can manage it with these tried-and-true methods. Good luck!

Pond Talk: How often do you need to scrub string algae from your waterfall or stream?

Lift Debris From Waterfalls Instantly - Pond Logic (r) Oxy-Lift(t) Defense (r)

Why are water changes important? | Decorative Ponds & Water Gardens Q & A

Q: Why are water changes important?

Q: Why are water changes important?

Shirley – Warr Acres, OK

A: It’s nice to open a window on a warm spring day and let the fresh air flow through your house, right? Well, a partial or complete water change in your koi pond or water garden is the same thing: It freshens your finned pals’ environment, making them happy and healthy.

Here are five reasons why water changes are so important to your fish, plants and other aquatic life:

  1. Nutrient Removal: Muck and debris buildup happens in just about every water feature. A water change manually removes any excess nutrients and chemicals like nitrates, phosphates and ammonia that can be harmful to fish and other underwater critters.
  2. Healthy Fish: Fresh, clean water means improved water quality, which ultimately promotes your fishes’ health. Just as you need oxygen to thrive, your fish need clean water to thrive. Their well being is directly related to the liquid environment in which they live.
  3. Algae Control: Pea soup and string algae feed on all that decomposing waste, which they use as fertilizer. By removing those excess nutrients in the water column with a water change, you can discourage the growth of algae.
  4. Fights Foam: Foam forms when excess organic material has accumulated in your water garden. When this nutrient-laden water pours down your waterfall, the air and water collide, causing the proteins and other organics to be trapped inside bubbles rather than turning into ammonia and nitrites. A water change will quickly reduce that foamy buildup.
  5. Clears Water, Stabilizes pH: A water change will also improve the appearance of cloudy water and maintain pH levels, resulting in a pristine pond filled with healthy fish, lush greenery and clean water.

To keep stress levels down among your fish, we recommend doing partial water changes as soon as water temperatures reach 50° F. In addition, be sure to add some Stress Reducer PLUS and LiquidClear™ to your water. The Stress Reducer PLUS forms a beneficial slime coat on your fish and makes tap water safe for them. The LiquidClear’s™ beneficial bacteria helps to digest dead organics in the water, making it crystal clear.

Pond Talk: How often do you do water changes in your koi pond or water garden?

Builds Protective Slime Coating - Pond Logic (r) Stress Reducer PLUS

Now that it’s spring, when do I start using my DefensePAC? | Decorative Ponds & Water Gardens Q & A

Q: Now that it’s spring, when do I start using my DefensePAC(r)?

Q: Now that it’s spring, when do I start using my DefensePAC®?

Jan – Avoca, NY

A: Containing everything you need to jump start your backyard pond or water garden in the spring, your DefensePAC®” package can be cracked open as soon as the ice melts and water temperatures are consistently above 40°F.

The first products in the pack you’ll use are Oxy-Lift™ Defense® and Seasonal Defense®. They’re perfect for cleaning out your pond and prepping it for spring.

  • Oxy-Lift™ Defense® lifts debris from waterfalls, streams, rocks and anywhere else muck collects in your pond. Simply shut down your waterfall and/or streams, sprinkle on the affected areas and watch the foam get to work breaking down that unsightly buildup. Use Oxy-Lift™ Defense® only when needed.
  • Seasonal Defense® contains hungry beneficial bacteria that will immediately get busy gobbling through leaves, scum and settlement that have collected over the winter. Spring applications should begin at pond startup or just after ice melts. Use Seasonal Defense® once a week for four weeks in the spring.

The other ingredients in DefensePAC®—including Nature’s Defense®, Clarity Defense® and Muck Defense®—all work to promote a healthy ecosystem, clean and clear the water column, and break down organics in your pond. They can be used on a routine basis throughout the spring and summer.

  • Nature’s Defense® contains natural bacteria that breaks down organics in your water garden. These organics, if left alone, are a food resource for algae—which is not something you want to feed. Because it works best when temperatures are above 50°F, check you water’s temperature with a Floating Pond Thermometer before dosing. Use Nature’s Defense® every two weeks throughout the season.
  • Clarity Defense® is designed to clarify ponds. It locks up excess nutrients, making them unavailable as a food source for algae, and settles suspended particulates that are in the water column. It also stimulates natural bacteria growth and buffers pH levels.
  • Muck Defense® also contains natural bacteria that accelerate the decomposition of organic matter caused by rotting leaves, algae and fish waste. This is great for water gardens that were constructed with rocks and gravel that are difficult to vacuum. We suggest using Muck Defense® every four weeks throughout the season when water temperatures are above 50°F.

DefensePAC® is a five-step solution to cleaning and clearing your pond—and keeping it that way all season long.

Pond Talk: What kinds of changes are you planning to make to your water garden this spring?

All Natural, Pond Care System - Pond Logic® DefensePAC®

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