Best Pond Liner To Use For Koi And Wildlife Pond

Selecting the best pond liner is the most important thing when you are building a pond.

A high-quality liner will give you a long time of service without any major repair.

In this post, we will talk about liners that are puncture-resistant, durable, flexible to work with, and also safe for fish and other pond habitats.

Anjon Lifeguard 45 Mil EPDM Pond Liner

Anjon Lifeguard 45 Mil EPDM Pond Liner
Anjon Lifeguard Liner | Click Image To Check It On Amazon

Overview

The Anjon Lifeguard EPDM  liner offers everything you may ask for. As made with EPDM (ethylene propylene diene monomer)  rubber, it is very flexible and hence easy to work with. You can stretch it to any shape. Therefore it is the most suitable liner to use for your koi pond, wildlife pond, and water features.

It has a thickness of 45 mil and resistance to puncture. Therefore, it will not get damaged by rocks and other sharp things that you may add to the pond.

This pond liner can withstand UV radiation and weathering effect sun, freeze, and thaw. As a result, this one lasts longer than a normal liner and doesn’t require frequent repair.

Another thing to mention about this liner is, it doesn’t contain any plasticizer. Plasticizers make liner brittle. Cracks can form easily in those liners that contain plasticizers.

Being safe environmentally is not harmful to fish and other pond animals like snails and frogs.

This one is available in different sizes:

  • 10 ft. x 10 ft.
  • 10 ft. x 15 ft.
  • 10 ft. x 20 ft.
  • 10 ft. x 25 ft.
  • 15 ft. x 15 ft.
  • 15 ft. x 20 ft.
  • 15 ft. x 25 ft.
  • 20 ft. x 20 ft.
  • 20 ft. x 25 ft.
  • 20 ft. x 30 ft.

They also offer another set of liners (Link to Amazon) having different dimensions like –

  • 3 ft. x 10 ft.
  • 4 ft. x 15 ft.
  • 5 ft. x 10 ft.
  • 5 ft. x 15 ft.
  • 5 ft. x 20 ft.
  • 5 ft. x 25 ft.
  • 5 ft. x 30 ft.
  • 5 ft. x 35 ft.
  • 5 ft. x 40 ft.
  • 5 ft. x 45 ft.
  • 7.5 ft. x 10 ft.
  • 7.5 ft. x 15 ft.
  • 7.5 ft. x 20 ft.
  • 7.5 ft. x 25 ft.
  • 7.5 ft. x 30 ft.
  • 7.5 ft. x 35 ft.
  • 7.5 ft. x 40 ft.
  • 7.5 ft. x 45 ft.

So, no matter what size pond or water feature you are building, you can choose accordingly.

You may also need pond underlayment for installing pon liner. In that case, you can consider their Pond Liner and Underlayment Combo (Link to Amazon).

What We Like

  • It lasts longer and can withstand UV radiation and weathering.
  • Good thickness.
  • Available in different sizes.
  • Easy to work with.
  • Safe for fish.
  • It doesn’t contain a plasticizer that makes liner brittle.
  • Great value for the money.
  • Puncture resistance.

What We Don’t Like

  • Costs more than other liners.

PondGard 15 ft X 15 ft Firestone 45 Mil EPDM Pond Liner

PondGard 15 ft X 15 ft Firestone 45 Mil EPDM Pond Liner
PondGard 15 ft X 15 ft Firestone 45 Mil EPDM Pond Liner | Click Image To Check It On Amazon

Overview

The reason why the PondGard Firestone Liner stands above the crowd is its life expectancy. Unlike other pond liners, this one has a life expectancy of 75 years and the manufacturer offers 20 years of limited warranty.

As the name suggests this one has a 45-mil thickness which is considered ideal for liners. As this one is made of EPDM rubber like other liners of this material, this one is flexible. Therefore, it can be stretched to any shape for building a unique shape pond.

This one is environmentally safe. Hence, it doesn’t bring any harm to fish and other habitats living in the pond.

PondGard offers another liner that is 10ft X 20ft in size (Link To Amazon). It is also 45 mil in thickness and can withstand a wide temperature range of -49F to 266F.

What We Like

  • High life expectancy.
  • Safe for fish and other habitats.
  • Easy to stretch and flexible.
  • Durable against weathering effect.

What We Don’t Like

  • Some customers have claimed to have holes in it when the product was received.

USA Pond Products – 4′ x 6′ Pond Liner

USA Pond Products - 4' x 6' Pond Liner
USA Pond Products – 4′ x 6′ Pond Liner | Click Image To Check It On Amazon

Overview

The only PVC liner on our list is the USA Pond Products – 4′ x 6′ Pond Liner.

This one is made with PVC (Polyvinyl Chloride). This liner material is extremely flexible. And when it comes to pond liner, flexibility is one of the most important things that you have to consider. Its flexibility lets you fold and tuck as needed.

The thickness of this liner is 20 mil, therefore, it’s hard enough to penetrate by rocks and other sharp things.

The size of this pond liner is 4’ X 6 ‘. As a result, I will recommend it only for a small pond, water features, and aquaponics. IF you need to build a large pond, then you should consider my other recommendations.

What We Like

  • Highly flexible.
  • Easy to work with.
  • Hard to penetrate.

What We Don’t Like

  • Very small in size.

Aquascape 85009 EPDM 45 Mil Rubber Liner

Aquascape 85009 EPDM 45 Mil Rubber Liner
Aquascape 85009 EPDM 45 Mil Rubber Liner | Click Image To Check It On Amazon

Overview

If you are looking for the best pond liner for the money then you can consider the Aquascape 85009 EPDM Liner. It offers the best price for a 45 mil pond liner. It is made of rubber. Hence, very much flexible.

It has a thickness of 45 mil which is very high. But despite the high thickness, it is very much flexible and easy to stretch.

Aquascape 85009 has great resistance to UV, Oxidation, Ozone, and weathering effects. Therefore, it will give you a long-term service. As Aquascape claims, this one will last for 20 years.

This one is available in 9 different sizes:

  • 8 x 10 Feet
  • 10 x 10 Feet
  • 10 x 12 Feet
  • 10 x 20 Feet
  • 10 x 30 Feet
  • 12 x 15 Feet
  • 15 x 15 Feet
  • 15 x 20 Feet
  • 20 x 25 Feet

So no matter what size pond or water feature you are building, you can choose accordingly.

What We Like

  • High thickness.
  • Very durable.
  • Available in lots of sizes.
  • Flexible enough to work with.
  • Good value for Money

What We Don’t Like

  • Some report on having a hole in the liner from the factory

Firestone 45mil Rubber Pond Liner

Firestone 45mil EPDM Rubber Pond Liner
Firestone 45mil Rubber Pond Liner | Click Image To Check It On Amazon

Overview

If you are looking for a liner that lasts exceptionally longer, then you should choose the Firestone 45mil EPDM Rubber Pond Liner.

As the name suggests, this one has a 45 mil thickness which is the best thickness for building ponds. As made with EPDM Rubber, despite having this high thickness, it is flexible enough to work with. Therefore, you can bend and stretch it to any shape and make creative designs for your pond.

As this one is made of rubber, it is safe environmentally. Therefore, this one will not harm your fish and pets.

As I have said earlier, this one is very much durable and lasts longer than most of the other liners available in the market. So, for durability, you can go for this one.

This one comes as a 15ft X 20ft pre-cut sheet. Other sizes are also available:

  • 5 ft X 10 ft
  • 10 ft X 10 ft
  • 10 ft X 15 ft
  • 12 ft X 15 ft
  • 20 ft x 20 ft
  •  20 ft X 25 ft

What We Like

  • Durable and lasts longer.
  • High flexibility and workability.
  • Easy to stretch.
  • A good thickness for liner.
  • Environmentally safe.

What We Don’t Like

  • A little heavy to work with.

Beckett Corporation 6 Foot by 12 Foot Pre-Cut Pond Liner Underlayment

Firestone 45mil EPDM Rubber Pond Liner
Firestone 45mil EPDM Pond Liner | Click Image To Check It On Amazon

Overview

Although this one is a pond liner underlayment, we have included it in our list of best pond liners because you will need this one to protect your liner from puncture by sharp objects.

This is a rug-like liner that supports and protects the liner above it.

It is made with Polypropylene. Therefore, this one is sturdy enough to last longer.

Although strong enough to protect your liner, this one is also flexible. Therefore, can be bend into any shape for easy installation in the pond.

What We Like

  • Highly protective.
  • Easy to install.
  • Flexible to work with.
  • Made with durable material

What We Don’t Like

  • Not very thick.

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