• Archives

  • Categories

  • Pages

  • Follow me on Twitter

I thought I did a successful chemical treatment, but why are the weeds coming back? | Ponds & Lakes Q&A

Q: I thought I did a successful chemical treatment, but why are the weeds coming back?

Q: I thought I did a successful chemical treatment, but why are the weeds coming back?

Barney – Andalusia, AL

A: Treating weeds is a tricky task. Despite dosing them with aquatic herbicides to clear your pond or lake of plant pests, they seem to grow back over and over again. It seems like a never-ending cycle! Why does this happen?

Well, chemical treatments have their benefits and drawbacks: On one hand, they work great as a quick fix to decimate actively growing weeds. But once those plants die, they become a food source for future weeds and algae, acting as a fertilizer for the very things you’re trying to get rid of. The herbicides do nothing to prevent future growth, and so you’re left with yet another growth spurt of pond weeds, which you’ll then treat with chemical herbicides – and around you’ll go again.

So how do you break the cycle? Here is a four-step approach that will help put an end to it.

  1. Remove the Dead Weeds: Once the weeds have browned, use a Pond & Beach Rake or PondSkim™ Debris Skimmer to remove as much dead material from the water as possible. This prevents dead plant material and muck from accumulating and fertilizing future weed growth.
  2. Be Proactive: Debris will still find its way into your pond, so add some beneficial bacteria to the water to manage the excess nutrients before they feed your weeds. The products found in the ClearPAC® PLUS Pond Care Packages – including PondClear™ and EcoBoost™ for suspended debris, and MuckAway™ for accumulated bottom-of-the-pond debris – naturally break down that organic material.
  3. Add Aeration: If you don’t have one already, install a Airmax® Aeration System that’s sized for your pond or lake. By circulating and adding oxygen to the water column, the beneficial bacteria will thrive. In turn, they’ll eat through even more debris and prevent weed and algae growth.
  4. Shade and Color:  Pond Dye is another offensive tactic in your battle against aquatic weeds. Pond dye shades the water, preventing ultraviolet light from reaching the plants.

Throughout the spring and summer, weeds will grow. But with some pond management practices, you can keep those pesky plants to a minimum.

Pond Talk: How often do you treat your pond or lake for weeds?

Skim Dead Algae & Vegetation - The Pond Guy(r) Pond & Beach Rake


Enjoy this article?
Join over 50,000 fellow pond owners and receive our Weekly Pond Talk every Saturday.


Do I need to hire someone to install lighting in my pond, or is that something I can do? | Decorative Ponds & Water Gardens Q & A

Q: Do I need to hire someone to install lighting in my pond, or is that something I can do?

Q: Do I need to hire someone to install lighting in my pond, or is that something I can do?

Tiffany – Savannah, TN

A: Unless you’re planning a Bellagio-esque display in your backyard, you can most certainly install some show-stopping lighting. It’s perfect for the do-it-yourselfer: A simple transformer and some quick connections allow any homeowner to take their water feature to the next level.

Layout Lighting Goals

Before you dive in, however, brainstorm what you’d like the lighting to do. What are your goals?

  • If you’d like a few lights to mark the pond at night, check out our Floating Solar Lights. They’re a great way to add nighttime illumination to any pond or water garden. The LED lights, which shift between pink, yellow and blue, are solar-powered and maintenance-free – making them an energy-efficient choice that will last for years.
  • If you’d like to illuminate a waterfall or accent a small water feature, take a look at our waterfall lights and three-pack halogen mini lights. The Pond Guy® Waterfall Light highlights waterfalls via its submersible 10-watt halogen light. It’s waterproof and includes a low-voltage transformer. Rock Lights feature a realistic stone finish, allowing them the blend naturally with your landscape.
  • If you’d like to light up your entire pond, try LEDPro™ Lights. They can be used in or out of water and shine with the same intensity as a halogen bulb, but with a longer life span and lower energy cost.

Easy Installation

Installing these lighting systems is easy. If you’re considering the LEDPro Rock Lights or High Output lights, there’s virtually no work at all. They contain a photocell, so the light will automatically turn on when it’s dark and turn off when the sun rises.

Most other pond lights we offer have standard plugs, so there’s no need for additional control panels or wiring. Before installing them, check out these pro tips:

  • To give you better access, partially drain the pond when installing the lights.
  • Leave extra power cord wrapped around the light so you can easily access it for maintenance or cleaning without draining the pond.
  • Position the lights so they shine out into the pond rather than facing you.

Pond Talk: What kinds of lights do you have illuminating your pond?

Great For Small Ponds & Gardens - The Pond Guy® 3 Watt, LEDPro™ Lights


Enjoy this article?
Join over 50,000 fellow pond owners and receive our Weekly Pond Talk every Saturday.


If I treat my pond for weeds and it rains, will the treatment still work? | Ponds & Lakes Q&A

Q: If I treat my pond for weeds and it rains, will the treatment still work?

Q: If I treat my pond for weeds and it rains, will the treatment still work?

Amy – Linn Grove, IN

A: That all depends! Because you’re applying chemicals to water, you’d think that rain would have no affect on the herbicide—but it actually might. How long it rains, how heavily it rains and how soon it rained after you applied the treatment could impact its quality and effectiveness.

If wet stuff from the sky is a threat and you’re thinking about spraying algaecides or herbicides to control nuisance plants in your pond or lake, here are four general guidelines to follow:

  1. Check the Weather: Is steady rain forecast for the day? If so, postpone any treatment of emergent weeds. Many treatments need to be absorbed by the plant’s leaves to be effective. A day-long stint of rain will rinse the chemical off the weed before it can be fully absorbed.
  2. Check the Weather, Part II: If you’re expecting heavy precipitation, definitely put off treatment to another day. The applied chemical could rinse off the plants and overflow from the pond before being taken up by the target weed.
  3. Reapply If Necessary: A light sprinkle will generally not affect the chemical’s potency in a pond that’s already been treated. If a downpour occurs within a few hours of application, however, plan to reapply the herbicide in a few days to fully control that target plant.
  4. Make Your Treatment Count: Use a pond sprayer to apply the chemical as close to target weeds as possible, and use a sticky surfactant to help the chemical absorb into the plant like Treatment Booster™ PLUS. Treatment Booster™ PLUS breaks down the surface of the weed or algae and allows the active ingredient to penetrate.

Even though you’re treating aquatic weeds, wet weather can still impact the chemical’s effectiveness. Check the short- and long-term forecast and plan accordingly – because you don’t want all that hard work (and costly treatments) to be for nothing!

Pond Talk: How has the weather affected your pond or lake so far this summer?

Kill Persistent Weeds & Grasses - Shoreline Defense® & Treatment Booster™ PLUS

My water lilies have lots of leaves but no flowers. What’s wrong?| Decorative Ponds & Water Gardens Q & A

Q: My water lilies have lots of leaves but no flowers. What’s wrong?

Q: My water lilies have lots of leaves but no flowers. What’s wrong?

Lucinda – Angier, NC

A: Those lily pads may provide much-needed shade and protection to your pond’s underwater inhabitants, but if the plants lack those beautiful pink, peach, yellow and white flowers, that could be a sign that something’s amiss.

Here, we’ve outlined some possible causes of your lilies’ missing flowers:

  • Not Enough Nutrients: Curling or yellowing of the leaves or flowers can be signs of nitrogen, iron and magnesium deficiency. Have you fertilized your lilies lately? If not, if may be time to give them a little plant food. Thrive™ Aquatic Plant Fertilizer Tablets slowly release nutrients for up to one month, providing your plants with what they need to flourish.
  • Insufficient Light: Are your lilies getting six to eight hours of partial to full sun a day? Without that sunshine, the plant will appear weak and frail. If they’re under a canopy or in a shadier part of your pond, move them to a sunnier location.
  • Overcrowded Plants: Plants – terrestrial and aquatic – need room to stretch out their roots and grow. If they’re placed in a tiny planter or there are too many packed in one area, this can stunt their development. Take some time to pull out those plant baskets or bags from your pond and divide the lilies into separate pots. Here are step-by-step instructions for dividing water lilies, though we recommend waiting until the spring.
  • Poor pH Levels: Water lilies do best in water that’s in the 6.2 to 7.4 pH range. Check pH levels frequently with a pH Test Kit to ensure the measurements are within that range and correct them accordingly.

Like your roses or other plants in your flower garden, your water lilies will benefit from some regular trimming and dead-heading. Prune or trim any flowers or leaves that have turned yellow or brown. This will encourage new growth – and hopefully some new blooms!

Pond Talk: How do you increase blooms from your water lilies?

Easily Adapts To Your Pond Shape - The Pond Guy(r) Plant Bags

I know herons are a common pond problem, but I think I have a raccoon around. Will it eat my fish, too? | Ponds & Lakes Q&A

Q: I know herons are a common pond problem, but I think I have a raccoon around. Will it eat my fish, too?

Q: I know herons are a common pond problem, but I think I have a raccoon around. Will it eat my fish, too?

Matt – Burton, MI

A: Bandit-masked raccoons are a familiar sight just about everywhere because they will eat just about anything, including your fish. Found in forests, marshes, prairies, suburbs and even cities, raccoons can be a nuisance around ponds and lakes. Here’s what you need to know to keep them away from your pond – and your garbage cans.

ID, Please

With the exception of 75-pound Bandit that holds the world record for “World’s Fattest Raccoon,” these nocturnal foragers are typically between 15 to 23 pounds and 30 to 37 inches long, or the size of a small dog. They sport heavy fur streaked in brown, black and gray, and have black eye stripes that resemble a mask. Raccoons have bushy ringed tails that grow up to a foot long, and their dexterous paws and long fingers make distinct prints in the mud or snow.

Sushi for Dinner

Though raccoons love to eat mice, insects, and tasty fruits and vegetables (particularly sweet corn) plucked from your garden and garbage can, the opportunistic water-loving critters will happily take a dive in your lake to hunt for crayfish, fish, turtles, frogs and worms. They’ll use their lightning-fast paws to grab both aquatic and terrestrial prey.

Tracking a Bandit

Raccoons aren’t exactly stealthy. If they’re prowling around, they’ll leave telltale signs around your home and property – like knocked-over garbage cans, overturned rocks and flower pots, rooted-through plants and disheveled yard decor. They’ll also leave tracks in the wet soil around the pond. And, if you’re lucky, you may even find a shelter or den made in a hollow tree, culvert, woodchuck burrow or under a building.

Evicting Raccoons

Mother Nature provides her own raccoon control in the form of coyotes, foxes, great horned owls and bobcats, but you can give her a hand in several different ways.

  • A live-animal trap baited with cat food or tuna will allow you to capture and relocate your problem raccoon.
  • The Nite Guard Solar® deterrent keeps raccoons away with its solar-powered LED lights. Activated at dusk, the red lights resemble a predator’s flashing eyes flash and cause the critter to run away.
  • Keep garbage cans securely sealed and manage other easy-access food sources, like cat food bowls and compost bins.

With hundreds of thousands of raccoons traipsing across the countryside, you’ll likely discover one or two (or an entire family!) living on your property near your lake. But if you use some wildlife management tactics like these, you can keep them under control. Good luck!

Pond Talk: How do you manage the raccoon population near your pond?

Protects Against Nighttime Predators - Nite Guard Solar®

Isn’t the waterfall enough aeration for my pond? | Decorative Ponds & Water Gardens Q & A

Q: Isn’t the waterfall enough aeration for my pond?

Q: Isn’t the waterfall enough aeration for my pond?

Staci – Bethel, VT

A: As your waterfall gurgles and churns gallons of water, it would certainly appear that your pond is getting plenty of aeration. All that action does, in fact, help with gas exchange and infuse oxygen into the water. But it isn’t always enough, especially if you run your waterfall pump for a short time during the day.

If a pond isn’t aerated enough, expect to see these telltale signs:

  • Algae Battles: Algae thrive in calm water that’s devoid of – and in need of – oxygen and beneficial bacteria. If you regularly fight algae blooms, that means your pond is out of balance and could use some additional oxygen and movement throughout the entire water column.
  • Oxygen-Starved Fish: Fish that need more oxygen will hang out beneath your waterfall, where oxygen supplies are the densest. They may also be coming to the water surface, gulping and gasping for breaths of air because there’s not enough in their environment.
  • Too Many Fish: The general rule for a fish population in a pond is to allow 1 inch of fish per square foot of surface area. If you have too many fish, or your existing population has outgrown their space, aeration is critical to their health and well being.
  • Stagnant Water, Mosquito Boom: Is the water stagnant in certain areas of your pond? Are you suffering through a mosquito boom in your backyard? These little pests prefer to lay their eggs and raise their young in still water – so you might have created a perfect mosquito habitat!
  • Muck Accumulation: Decomposing plant matter and fish waste build up when the water is still and your biological filtration system can’t keep up. That muck feeds the algae blooms, which create more muck.

Do any of these ring true? If so, your waterfall or stream is not providing enough aeration for your pond. An aeration system can help. The Airmax® PondAir™ Water Garden Aeration Kit is designed for smaller water gardens up to 2,000 gallons and The Pond Guy® Water Garden Aeration Kit is designed for water gardens and koi ponds that are up to 4,000 gallons. Both whisper-quiet systems can be run 24 hours a day, seven days a week, providing your finned pals and beneficial bacteria plenty of oxygen and water movement.

Pond Talk: Have you noticed any of these issues in your water garden?

Aerates Ponds Up To 4,000 Gallons - The Pond Guy® Water Garden Aeration Kit

We just bought a house with a pond. Do people actually swim in them? | Ponds & Lakes Q&A

Q: We just bought a house with a pond. Do people actually swim in them?

Q: We just bought a house with a pond. Do people actually swim in them?

Julie – Calcutta, OH

A: Yes, absolutely! Swimming ponds are all the rage—and for good reason. Compared to chemical-laden swimming pools cleaned with chlorine, swimming ponds use plants, natural bacteria and aeration to keep the water crystal clear. The Europeans have been creating these for years, and the trend has taken hold here.

Whether you want to dive into your new-to-you pond, however, really depends on how well it has been maintained. Here are some tips to prepare your pond for summertime fun!

  1. Reduce Muck
    There’s nothing like tiptoeing into a pond, only to sink 6 inches into the slippery, slimy muck. Ponds that haven’t been maintained often have a buildup of this sludge. One way to reduce it is to use natural bacteria like MuckAway™. The tiny microbes gobble through the decomposing debris, going through 2″ a month when used as directed.
  2. Add Aeration
    Did your pond come with an aeration system? If not, you need one. An aeration system will increase the productivity of those muck- and odor-eating natural bacteria by infusing the water with oxygen. An aerator will also improve water quality and churn the water column.
  3. Zap Algae
    Algae around your beach area is no fun—and it’s no good for your pond’s water quality, aesthetics and usability. Algae happens, particularly in ponds that have a lot of nutrients (muck and other decomposing debris) and sunshine, but you can battle it with some Algae Defense®. The algaecide goes after chara, filamentous and planktonic algae, the main cause of pea soup-colored water.
  4. An ‘Activity’ Pond
    Rather than refer to your pond as a “swimming pond,” think of the area as your summer activity zone. Who needs summer camp when you can do all these things around your pond:

    • Go fishing! Stock it with fish, grab your pole and tackle box, and catch and release some game fish.
    • Get some exercise! Run or walk laps around your pond, or drop in a paddle boat and do some laps—just 30 minutes can burn 100 calories.
    • Build sandcastles! Why go to a crowded beach when you could build sandcastles at home! Dump a truckload of sand pondside and enjoy your own dunes.
    • Try snorkeling or diving! It may not be the Great Barrier Reef, but you might make some interesting discoveries. Let us know if you find any sunken treasure.

Pond Talk: What favorite summertime activities do you do around your pond or lake?

Remove Up To 2