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Gold Label Under Water Sealant

Gold Label Under Water Sealant

Frequent Questions When Using Gold Label Under Water Sealant

Gold Label Under Water Sealant

Pondh2o Underwater Sealant Made By Gold Label is a cost effective And quick way of fixing all types of Pond leaks, which any pond owner will tell you is a stressful event.
We get asked many times on the best way to use the sealant so we have made up a quick checklist to help you fix that leak fast!

Most asked question is what will Gold Label Under Water Sealant seal:

Vinyl (abrade surface)
Composite Plastics
Concrete (use a suitable primer 1st)
Butyl Rubber (Pond Liner)


For best results ensure surface is clean and free of grease/algae etc. Gold Label Under Water Sealant needs to be in contact with the surface that you require the seal.
Pipe the sealer using a sealant gun (for full sized product) directly on to the surface you wish to seal/bond.  Ensuring a thick enough bead in order for the product to work.  Gold Label Pond & Aquarium Sealer is not glue but a sealant, gently push the patch if using on on gently , careful not to push the sealant out. For bonding where there is movement (expansion/contraction) between surfaces, allow a minimum 2mm thickness of beading.

When attaching different liners together, for best results use 2 lines of beading 150mm ( 6 inches) apart. Full curing time is approximately 24 hours but will be touch dry after 2-3 hours.  If using the clear version of the sealer, full cure time is approximately 36 hours as this version is less dense. Please note: should fish be present, protect from ingestion whilst curing. Should you wish to paint over the sealant, this can be done up to 4 hours after application. Do not use below 10 °C (5o Degrees) air or surface temperature. Shelf life up to 12 months in ambient conditions (10-25°C).

Gold Label Pond Sealant

Gold Label Pond Liner Repair Patch

Pond H2O Has All The Equipment You Need!

For all ponds, big and small Pond H2o has the supplies you need to make your dream water feature come to life! When we say we have all the supplies you need, we mean it, we are a one-stop shop for all that you need. From an all-in-one pond kit to maintenance care and accessories, we have you covered! If you have any questions call us at 856-985-9339 or email us at

Tips for Raising Baby Koi Fish

Tips for Raising Baby Koi Fish or Fry

Many aquatic enthusiast develop a personal attachment to their koi and their offspring. A great amount of satisfaction is achieved by breeding your own fish, and also shows you are doing everything right in regards to water quality, oxygen levels etc.

Here are some tips for raising baby koi fish or fry:

  • **Separate Tank:** They often move the eggs or newly hatched fry to a separate tank or pond. This allows for better control over water quality, temperature, and conditions specifically tailored for the fry’s growth.
  • **Water Quality:** Ensuring optimal water quality is crucial. This includes maintaining proper pH levels, ammonia and nitrite levels, and providing good aeration and filtration to keep the water clean.
  • **Feeding:** Fry are fed specialized food that is designed for their small size and nutritional needs. This can include commercial fry food, finely crushed flakes, or specially formulated fry pellets. Feeding frequency and amount should be monitored to prevent overfeeding.  Overfeeding will lead to water quality issues.

Tips for Raising Baby Koi Fish Fish Care Aids here at PondH2o

  • **Shelter:** Providing shelter, such as plants or artificial structures, helps the fry feel secure and reduces stress. It also gives them places to hide from potential predators.
  • **Monitoring:** Enthusiasts closely monitor the fry’s growth, behavior, and overall health. Any signs of illness or issues with water quality should be addressed promptly.
  • **Gradual Introduction:** As the fry grow, they can be gradually introduced to larger tanks or ponds with older koi. This transition is carefully managed to minimize stress and ensure compatibility with the existing population.

By following these tips for raising baby fish or fry and providing proper care, koi enthusiasts or anyone can raise healthy and vibrant koi fry into mature adults.

For all ponds, big and small Pond H2o has the supplies you need to make your dream pond come to life! When we say we have all the supplies you need, we mean it, we are a one-stop shop for all that you need. From an Fish Care Items to maintenance care and accessories, we have you covered!

If you have any questions call us at 856-985-9339 or email us at Our Facebook page for latest news and information.

Complete Kits Closing a koi fish pond PondH2o Products

Closing a Koi Fish Pond

Closing a koi fish pond properly is crucial for the well-being of your fish and the water garden. Here are seven crucial steps to follow that ensure a smooth spring:

  1. Gradual feeding reduction: Stop feeding your koi fish about two weeks before you plan to close the pond to allow them to digest their food.
  2. Water quality check: Test the water and make sure it’s in good condition. You may need to do a partial water change if necessary.
  3. Remove debris: Clean the pond by removing any debris, fallen leaves, and algae. This helps maintain water quality.
  4. Pond Cover Netting: Cover the pond with a sturdy net to prevent leaves, debris, and predators from getting in.
  5. Aeration and circulation: Keep your pond’s aeration and circulation systems running, especially if you expect freezing temperatures. This prevents the water from completely freezing over.
  6. Insulate the pump and filter: If you live in a cold climate, insulate your pond’s pump and filter to protect them from freezing.
  7. Secure shelters: If your area experiences harsh winters, consider adding a koi shelter or heat source to keep the water temperature stable.

By following these steps, you can help ensure the health and safety of your koi fish during the closed season.  Pond H20 has all the pond products you need for closing a koi fish pond!

Closing a Koi Fish Pond and Water Garden for the Season


For all ponds, big and small Pond H2o has the supplies you need to make your dream pond come to life! When we say we have all the supplies you need, we mean it, we are a one-stop shop for all that you need. From an all-in-one pond kits to maintenance care and accessories, we have you covered! If you have any questions call us at 856-985-9339 or email us at Our Facebook page for latest news and information.

How to Repot Pond Plants

How to Repot Pond Plants

Spring is the ideal time to for the water garden pond keeper to repot pond plants into slightly larger pots or baskets, renewing the pond soil and giving the roots space to grow. The water at the edge of your pond will be warming up with the increased sun levels as the days get longer and your pond plants will be starting to come into growth.

Choose a slightly larger pond basket for your plant and make sure your planting shelf is deep enough for the new basket.
Pondh2o have a great range of baskets for every type of need.

How to repot pond Plants


Step One

Knock the plant out of the old basket. You may need to cut it out if the roots have worked through the mesh. It won’t harm the plant if you prune the roots free.

Step Two

Cut out dead or damaged material and remove weeds or duckweed from around the plant. Pull the roots out a bit if they are tightly packed into the the shape of the old basket.

Step Three

Use a hessian liner and fresh pond specific soil with the new pond basket.  Place the plant in the basket and firmly press the aquatic soil around the root till the pot is 75% full.
Using soil suitable for planting aquatic plants ideally should be a medium to heavy loam. Garden soil can be used if it is free from fertilizer and herbicides. Otherwise, a proprietary aquatic compost should be ideally used.

Step Four

Add a layer of pond gravel on the top to stop the soil leaching into your pond and the fish digging in the soil.

How to Repot Pond Plants

Thank you for taking the time to read our article on how to repot pond plants.  Be sure to check out our Information Center for other Pond Blogs.  As always, remember to follow us on social media via our Facebook page for coupons and news.

Rising Spring Pond Water Temperature

Rising Spring Pond Water Temperature, What To Know

Spring is around the corner, the sun will get stronger and the spring pond water temperature will rise.

What happens to your fish?

Feeding becomes more evident as the spring pond water temperature increases.  Carp and similar species have no stomach just a long intestine, when the water goes over 55 Degrees Fahrenheit, they begin to absorb more, eat more and finally come out of winter hibernation.  Increase your feeding and use a higher protein food as the fish can now utilize it.  The fishes respiration increases as the water becomes less dense and the temperature increases, so look at the oxygen levels, turn the fountain or waterfall back on to increase O2 levels.

Add an aerator, if needed, to increase saturated oxygen levels as warmer water will not hold as much oxygen, particularly when the temperature hits 85 degrees Fahrenheit pond fish generally need a minimum of 7 ppm (parts per million) of dissolved oxygen. An average pond will drop down to 8 ppm of dissolved oxygen at 77 degrees Fahrenheit. At 86 degrees Fahrenheit, the amount of oxygen can drop to below 5ppm of dissolved oxygen.

What happens to the plants?

Rising Spring Pond Water Temperatures – What To Know

Plants wake back up again as the temperatures climb. Always trim back dead winter leaves to start and look at repotting if needed to allow the plant to flourish.

Pond Tips for Rising Pond Water Temperature

  • As the water temperature increases, add a spring bacteria to turbo boost the ecosystem
  • Check for Winter damage to the liner and filtration systems
  • Think about frogs and other amphibians who will want to use the pond, can they get out?
  • Read our other Pond Article on Spring Cleaning your Backyard Koi Fish Pond on this link!

Be sure to check out our Information Center for other Pond Blogs.  As always, remember to follow us on social media via our Facebook page for coupons and news.


Protect Your Pond Fish in Hot Weather

How To Protect Your Pond Fish in Hot Weather

Keeping Fish Safe and Healthy in Warmer Months

Depending on where you are located, at some point in the calendar year you will experience high temperatures, sometimes for a few days or a few months or even all year.
Here at PondH2o we have developed helpful tips to help you protect your pond fish in hot weather combat hot weather and the heat directly effecting your pond.

The hot weather can also cause problems for pond owners due to a phenomenon known as summer fish kill.  During hot weather water is capable of holding less dissolved oxygen than at cooler temperatures, and if there are large numbers of fish, organic wastes or aquatic plants in the pond the oxygen levels can plummet to dangerous levels with mainly larger fish being affected.

Top Seven Tips to Protect Your Pond Fish in Hot Weather:

  1. Keep water oxygenated, the most important, higher water temperatures suck the oxygen out of the water, why often in hot weather you see fish on the surface, this is because the oxygen levels are the highest on the surface.
  2. Don’t overfeed your fish, this adds stress to the pond fish and any uneaten food will rot down quickly causing water quality issues.
  3. Watch water levels. Evaporation is higher of course and a smaller volume of water will rise in temperature quicker. Remember if adding water to also use a dechlorinator if city water, again chlorine can inflame the gills and add to the stress.
  4. Provide shade, and a tarpaulin or large umbrella to help protect the pond from direct sunlight. Floating Planting Baskets work great.
  5. Make sure your pond is at least 2 feet deep.  This will help the fish by allowing them to keep out of direct sunlight and stay in the cooler parts of the pond.  Also, the more gallons a pond has enables you to control the temperature of the water.
  6. Use biological filters and skimmers, keep the water as clean and fish safe as possible, helps fish health and keeps stress down.
  7. Control algae, sucks the life out of the pond and then the fish.


Pond H20 has all the Pond Supplies you need!

For all ponds, big and small Pond H2o has the supplies you need to make your dream water feature come to life! When we say we have all the supplies you need, we mean it, we are a one-stop shop for all that you need. From an all-in-one pond kits to maintenance care and accessories, we have you covered! If you have any questions call us at 856-985-9339 or email us at  Check out our Facebook page for latest news and information.

String Algae pond filtration parts

What Causes String Algae?

String Algae, Carpet Algae, Blanketweed, Pond Scum the many different manners of the dreaded green bloom. Filamentous Algae is its true name as defined by Clemson EDU, Cladophora Glomerata (String Algae) is a common one. These algae form as thread-like structures that can be floating or attached to submerged items such as the pond walls or aquatic plants.

What causes Spring Algae?

Many different factors come into play, but these algae’s need food and this is usually the driver.  Often it can be seen at the start of the season, mainly due to the algae is faster out of the block, while slower marginals and lilies wake up and start to use up the nutrients in the pond ie phosphates and nitrates , the algae is off, growing rapidly.  Warming water and increasing sun levels also help string algae flourish.

How do I stop It?

Uv Lights do not work well against these Filamentous Algae’s, as the cells are not going through the quartz sleeve like single cell algae would.

Here are our top 5 tips to combat string algae:

  1. Easiest way is to break down the food chain by binding phosphates and other means to take away the food source. There are many different products on the pond market to do this.
  2. Physically removing the algae using a string algae brush.
  3. Plant more marginals and lilies to use up the excess nutrients; check out our plant baskets.
  4. Cut back on the fish food and this adds nutrients to the ponds. Use a Pond Feeder.
  5. Test the water for phosphates. Add Pond Treatments as needed.
  6. Pond tinting the water can also help to stop sunlight getting to the algae.


Pond H2O has all the Pond Supplies you need!

For all ponds, big and small Pond H2o has the supplies you need to make your dream water feature come to life! When we say we have all the supplies you need, we mean it, we are a one-stop shop for all that you need. From an all-in-one pond kit to maintenance care and accessories, we have you covered! If you have any questions call us at 856-985-9339 or email us at

EPDM Pond liner

Here Are Some Facts and Benefits for Using EPDM Pond liner

Here Are Some Facts and Benefits for Using EPDM Pond liner.  At Pond H2o, we have a bevy of pond liners you can purchase to keep your water garden pristine and healthy.  Today, however, we will be specifically assessing the effectiveness of EPDM pond liner, an option that offers both high quality and flexibility.

It provides versatility

Benefits for Using EPDM Pond liner

A koi pond under construction by Biofilter tech via Wikimedia Commons.

Ethylene Propylene Diene Monomer (EPDM) pond liners are also known as one of the more flexible pond liners on the market. In other words, they can be used to form sizes and shapes at your discretion.  Typically, one sheet of EPDM rubber will be sufficient enough to meet the needs of your average pond. However, this will depend on your pond’s size. If yours is on the larger side, you can use multiple liners.

Easy Installation

Another of the benefits for using EPDM pond liner and a testament to pond liners, especially with the EPDM variation, is its simple installation. You don’t have to be a professional to install this pond liner. Although it should be noted that you will need butyl tape and top quality pond adhesive, like PondH2o’s product Gold Label sealant, to make sure the seams are waterproofed.

The quality is ensured

Benefits for Using EPDM Pond liner

Seaming a EPDM pond liner by Aquascape Ponds via YouTube.

There are other flexible pond liners that have trouble holding up over the course of time. However, EPDM liners provide your water garden koi fish pond with longevity—enabling you to save money in the long run. 

For example, if you opt for a low-grade plastic or vinyl pond liner, there’s a higher chance it will eventually develop cuts and tears. Another variation known as PVC liners—typically found in above ground swimming pools —tend to be susceptible to punctures, too. PVC Pond Liners have a great starting price point and are easy to install, but can dry out in the sunlight.  With EPDM liners, however, the material is much more resilient and longer lasting. 


And there’s a practical reason for this. EPDM liners were originally made for flat roofs so that they can be more water resistant over time. However, once this liner became popularized and buyers made aware of its sturdy material, EPDM liners soon became one of the most widely used pond liners in the U.S.

After installation, you can be assured these are qualified for your pond and are fish friendly. And while there is no perfectly impervious pond liner on the market, this will provide you with much more resiliency and flexibility than the average.

It is important to note that since EPDM liners are made from high quality materials, they tend to be more expensive than its competitors. Although as the old adage goes, ‘you get what you pay for,’ and this is certainly the case with this variant. 

In the long run, you will be much less likely to replace this with other liners. In addition, an EPDM pond liner will withstand  harsh, colder climates, too. 

As far as upkeep, the most salient matter is to make sure your EPDM pond liner is consistently obfuscated from sunlight. Otherwise, the strength of the lining material can weaken over time.

Buy our fish pond liners designed to fit every budget today to get started, including from our EPDM, LDPE, and other pond liners.

Be sure to check out our Information Center for other Pond Blogs.  As always, remember to check our Facebook page for coupons and news.

Aerate Your Water Garden Pond

5 Reasons to Aerate Your Water Garden Pond

One of the more foundational elements of maintaining a clean pond is consistent aeration. Here are PondH2o’s 5 Reasons to Aerate Your Water Garden Pond.  

Some products out there work from the bottom up, while others utilize the inverse strategy. Either way, the overall goal to aerate your water garden pond is to increase the dissolved oxygen levels which equates to a healthy pond and fish habitat, especially during the winter time.

  • Find the correct sized aerator for your water garden

Many water garden ponds tend to rely exclusively on a collection of waterfalls for aeration. While this can be a solid and effective method, this typically results in aerating only the surface of the pond while the bottom remains neglected. Ultimately, this can create what is known as an anaerobic environment which means one with extremely low oxygen levels in areas of the pond.

Ground to surface aeration by Everyday Aquarist via Youtube.

Therefore, make sure you are always choosing the correct pond aeration system to both aerate from the top and bottom of the pond.

  • Higher oxygen stimulate the number of aerobic bacteria in the pond

In any pond habitat, there are billions of living bacteria at the bottom of the pond. Aerobic bacteria is bacteria that can only live and thrive in an oxygenated environment.  However, this bacteria also manifest important functions that involve the dissolution of organic debris and the breakdown of pond muck. It serves to note, too, that low bacteria levels can also result in an increase in organic build-up at the bottom of the pond, which you want to avoid at all costs. 

Bacteria molecules in pond water by Jasper Nance via Flikr.

In other words, if you have a build-up of organic debris, this can lead to unwanted changes in your water garden, such as discolored green water. This can be easily curtailed by increasing the amount of aerobic bacteria to sustain the constant organic load trickling into the pond. 

  • Aeration serves as a proxy for de-icing during the winter months

During the winter months, your filtration system and fish will be dormant. As this happens, the aforementioned organic debris will continue to decompose and release gas into the water. The gas then can become trapped in the ice which supplants the oxygen and in turn can be fatal to the fish.

Aerate Your Water Garden Pond PondH2o

Bird bath deicer by fishhawk via Flikr.

And while heaters and deicers can serve the useful purpose of providing ventilation, they can’t provide macro circulation for the gases throughout the pond. Thanks to aeration, this discourages ice formation and also helps distribute the toxic gases to the surface to be released and ensures your fish are safe during the winter months.

  • It’s a money saver, too

Aerate Your Water Garden Pond PondH2o

Saving money by 401 (K) 2012 via Flikr.

As mentioned previously, you can aerate your water garden by using a waterfall pump in the winter. However, this can be a quite draining (no pun intended) expense. Conversely, if you opt to use a properly sized solar aerator, this can nullify the need to use the waterfall pump on a regular basis, and thereby saving hundreds of dollars a year in the process, too.

  • Decrease overall pond maintenance 

By chronically running your solar aerator on a year-round basis, you can thereby drastically reduce both the maintenance you have to perform and the costs, too. In addition to the other benefits, an oxygen-rich water habitat enables a robust bacteria population which helps remove organic debris, nullify harmful gases and helps lower ammonia and nitrate levels, too. 

Aerate Your Water Garden Pond PondH2o

A koi pond near Wat Pho, Bangkok, Thailand by Siddarth Mallya via Wikimedia Commons.

Now that your pond is utilizing these aeration techniques, make sure to check out our Water Garden Koi Fish Pond Aeration Products from PondH2o to optimally oxygenate your water garden.

Be sure to check out our Information Center for other Pond Blogs.  As always, remember to check our Facebook page for coupons and news.

Top Tips for Taking Care of a Koi Fish Pond

Top Tips for Taking Care of a Koi Fish Pond

Our latest article on the top tips for taking care of a koi fish pond.  A koi fish, is a fish that can live up to more than three decades, nishikigoi, commonly known as koi, colorful carp fish that are kept as ornamental decorative pets in a backyard pond. 

Indeed, their average lifespans—upwards of 25 years—are protracted in captivity, which makes it even more crucial to create a healthy habitat for them.  However, sustaining a thriving koi pond can be tricky, especially for novices who lack necessary experience in these matters. No worries – that’s why Pond H2o is here to help with our Top Tips for Taking care of a Koi Fish Pond.

Here are some of the more exigent points to help you create and subsequently maintain a healthy koi fish pond.

  • Frequently change the water 

Top Tips for Taking Care of a Koi Fish Pond

A koi fish pond in the Kranji countryside, Singapore by Eustaquio Santimano via Flikr.

After the installation of your koi pond, evaporation will gradually take place over time, especially in warmer climates. This leads to a decrease in the water, which in turn leaves behind minerals and other substances that could eventually hinder its quality. Due to this inevitability, you will lose at least 10 to 15 percent of water on a weekly basis and need to refill the pond to the required level—depending on the size of your pond. Also, it is never recommended to do a full water change in your pond, as this will shock your fish and their habitat.

  • Monitor and control the algae

Fix algae problems in a fish pond

Algae-covered pond in Township, Michigan by Dwight Burdette via Wikimedia Commons.

During the filtration process—which we will delve into later—ammonia in the pond is transformed into nitrate—a harmless substance. However, nitrate allows algae to grow and thrive throughout, which can be detrimental to the koi. A superfluous amount of algae can deprive the koi of oxygen. To prevent this, use algaecides and carefully read the instructions, as the frequency of use will depend on the product in question. Perform regular tests on your pond water quality.

  • Make sure to clean your filter

Pond Cover Netting protect koi fishFish pond with a barrel used for the filter by cskk via Flikr.

Typically, most biological pond filters should be cleaned and maintained every two weeks. However, this largely depends on the ratio of fish to water, and the surrounding conditions, too.   You will also need to determine how often the filter needs to be backwashed. This can be done by checking the pressure gauge—if it is reading much higher than usual, then you’ll need to backwash it.

  • Seasonality

Plants & Decor in a pond to protect fishKoi pond meditation garden by Wonderlane via Flikr.

Your koi fish pond maintenance strategy will also be dependent on the season. During colder months, it is imperative to cut or trim all dying leaves from the aquatic plants.  Also the surface of your pond may freeze during the winter (depending where you live), so it’s important to purchase a floating pond aerator to put in one of the sections of the water to prevent freezing. 

For the spring and summer months, the time for pond cleaning becomes much easier, and more apparent—thanks to debris carried over from the winter. For this, transfer the koi to holding tanks to make for a more streamlined, expeditious cleaning process, since there will likely be a lot of debris to clean out and will ensure lower stress levels for the koi fish. 

  • Address and remedy any leaks

PondH2o Koi fish handling productsA koi pond by brewbooks via Wikimedia Commons. 

As mentioned, water levels decrease naturally due to evaporation. If the leakage is increasing, it’s probably safe to assume there is a leak. Overall, it is normal for a koi pond to lose about ½ inches of water per day. However, any loss greater than that rate is likely an indication there is a leakage. To stabilize the pond’s conditions, repair any leak(s) as soon as possible. 

For more of our products, specifically one that helps transfer your koi fish during a spring or summer cleaning, check out our heavy duty waterproof koi fish transport sock.

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