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Coptrol™ Aquatic Algaecide 1L & Aquatic Blue™ 1L – Combo


Algae Remedy Kit for Ponds, Dams and Lakes

Coptrol – For the Safe Control of all Types of Algae in all types of water bodies.

  • Kills problem algae (including cyanobacteria)
  • Fast-acting
  • Completely safe
  • APVMA approved
  • Suitable for all water bodies (including drinking water, irrigation dams, stock watering dams, lakes, ponds & more

Aquatic Blue – For the use in Ponds, Dams & Lakes to improve its Visual Appearance

  • Promotes good fish health
  • Supports healthy bacteria
  • Reduces UV penetration, decreasing overall water temperature (cooler water holds more oxygen)
Fast, no-contact delivery
Australian owned
Proudly Australian


Coptrol is used to treat all types of algae, including cyanobacteria (blue-green algae). It is safe to use in drinking water (potable water) and irrigated water. Coptrol is a safe and viable option due to the fact that you can immediately use the treated water for human consumption, stock watering and irrigation after application.

Where does it work?
Coptrol works in virtually all kinds of water. Saltwater or freshwater, turbid or clear, Coptrol helps to get rid of algae and prevents any further growth in a way that’s user-friendly and safe for all.

What is Coptrol?
Coptrol is an Australian made commercial-grade algaecide that is highly concentrated and is safe to use and easy to apply, Coptrol does not harm humans, livestock, fish, domestic pets and aquatic plants. When used according to label instructions, Coptrol is a safe and effective method to stop algae growth, including but not limited to, free-floating and filamentous green algae, green slime algae and brown algae.

How long does it take to work?
Coptrol kills algae quickly – usually within just 72 hours. It’s safe to use in all types of water bodies and is easy to use in accordance with label instructions. Coptrol is easily applied by spraying directly onto the body of water that needs treatment.

Is Coptrol safe?
Coptrol is a noncorrosive viscous liquid that will not corrode metal pumps, fountains or irrigation equipment.

Coptrol is APVMA (Australian Pesticides & Veterinary Medicines Authority) approved. Coptrol lets you tackle the problem of algae without having to keep animals and humans away from the treated water after application.

Approval from the Australian Pesticides and Veterinary Medicines Authority – the National Registration Authority for agricultural and veterinary chemicals.

Aquatic Blue

Improving the appearance of your pond has never been easier. With Aquatic Blue, you can refresh the colour of your water and reduce UV light all in one!

This easy to use highly concentrated colourant dyes water and provides brilliant blue colour, lasting longer than any other dye on the market. Anti-foaming agent makes the product ideal for use in water with fountains and in water features. What’s more, is that this Aquatic Blue dye reduces the penetration of UV light into the water. Less light can reduce photosynthetic activity that algae and aquatic weeds rely on.

Is it Aquatic Blue safe?

Is safe to use in the presence of humans, livestock, fish, domestic pets and wildlife. Once diluted into the water column it is safe for swimming and the dye will not stain skin hair, clothes, rocks or sand. This dye is super simple to apply – just measure your amount according to instructions and apply directly into the water or spray for a quick result.

How does it work?

This science-backed product works by restricting the penetration of UV rays into the water column. Without light, some aquatic weeds and algae are not able to photosynthesise and grow. Aquatic Blue filters the sun’s rays, reducing the amount of UV light present in the water body. The reduction of light may hinder aquatic weeds and algal growth. Aquatic Blue gives your body of water a gorgeous blue hue.

Because of its light-filtering properties, Aquatic Blue may decrease water temperatures where applied. This can be beneficial for increased oxygen saturation, which in turn can keep fish healthy for longer and support the growth of the ‘good’ types of bacteria in your water.
Because Aquatic Blue changes the colour of the water, this may prevent fish from being predated as they can be harder to see due to the refraction of light against the blue.

Basically, aquatic plants and algae need sunlight to grow for photosynthesis Aquatic Blue prohibits the penetration of light into the body of water. Limiting the light reduces the ability of plants and algae to grow. The science is quite simple: this aquatic dye is formulated to ‘screen out’ red-orange and blue-violet light rays from the sun. As the dye reflects sunlight, water temperatures remain lower. Less light means algae growth may be suppressed.

Did you know?
• Colder water holds in it more oxygen, which is beneficial for healthy fish and adequate growth of ‘good’ bacteria.
• Cutting the intensity of light penetration in water can reduce phytoplankton blooms. This can help limit pH-level fluctuations and keep these levels stable for longer.

Aquatic Blue may also assist in limiting pH-level fluctuations in water. A reduced concentration of light helps limit the risk of phytoplankton blooms. A high level of this type of plankton can cause abnormalities in the pH-levels of your water, which can be problematic for your pond.

What is Aquatic Blue made of?

It’s made up of a highly concentrated blend of colourants that dye the water and dispersants that evenly distribute the dye throughout. With Aquatic Blue, you don’t have to worry about dye clumping or sinking to the bottom of your pond, dam or lake.

Refresh your pond with brilliant blue colour

Aquatic Blue is formulated to disperse evenly throughout your water source for a beautiful blue hue that’s consistent throughout your pond. What’s more, is Aquatic Blue works quickly with long-term effect, giving you the perfect solution to keeping your water aesthetically superb. With this aquatic dye, you won’t get clumpy dye particles sinking to the bottom – enjoy an awesome depth of colour and long-lasting effect.

How To Use

How to Use Coptrol: When used in accordance with the label directions

Methods of Applying Coptrol: Once diluted, Coptrol can be applied directly from a bucket, watering can, knapsack sprayer, horticulture sprayer, firefighter pump sprayed from the bank, or from boats or aircrafts.

Coptrol can also be dripped directly into flowing water in high volume treatments such as flood irrigation water.

Coptrol is solely used for the control of algae and does not control aquatic plants. Common aquatic plants often mistaken for algae are Duckweed, Azolla and Salvinia. Aquatic Technologies has products to assist with the control of aquatic weeds, please view our products here.

How to Use Aquatic Blue: When used as directed, Aquatic Blue is completely safe to use around humans, fish, pets and livestock. Safe to use in water meant for both swimming and irrigation, this aquatic dye is also compatible with chelated copper algaecides like Coptrol.



The following areas and submerged aquatic plants use light for Photosynthesis:

  • Filamentous Algae
  • Blue-Green Algae – “Cyanobacteria”
  • Ribbonweed – Vallisneria
  • Sea Tassel – Ruppia megacarpa
  • Curly Pondweed – Potamogeton crispus
  • Blunt Pondweed – Potamogeton ochreatus
  • Sago Pondweed – Stuckenia pectinata
  • Eelgrass – Zostera capricorni
  • Waternymph – Najas tenuifolai
  • Hydrilla – Hydrilla verticillata
  • Elodea – Elodea canadensis
  • Dense Waterweed – Egeria densa
  • Watermilfoil – Myriophyllum spicatum
  • Parrots Feather – Myriophyllum aquaticum
  • Hornwort – Ceratophyllum demersum
  • Fanwort – Cabomba caroliniana
  • and more

Features and Benefits:

  • Long-lasting natural blue colour
  • Easy to use
  • Highly concentrated
  • Harmless to fish, wildlife and humans
  • Formulated to filter sunlight penetration
  • Anti-foaming agent, ideal for fountains and water features

Highly Compatible!
Aquatic Blue is compatible with chelated copper algaecides, such as Coptrol and most other chemicals used in the aquatic environment.



Is Coptrol Safe?

Coptrol is a commercial grade algaecide that is safe and easy to use, APVMA approved and does not harm fish, livestock, plants, pastures or turf irrigated with water treated with Coptrol (when used in accordance with label instructions).

Will Coptrol harm fish?

No, Coptrol will not harm fish or other wildlife (when used in accordance with label instructions).

How does Coptrol work?

Coptrol is an Aquatic Algaecide.

When applied to a body of water, the algae present actively seek out the Coptrol and absorb it for its nutritional value. Once Coptrol is absorbed by the algae through the cell wall, digestive enzymes in the algae cells break down the Coptrol compound and then release the active constituent inside the algae cell to kill it.

Can I use chlorine to kill algae?

Chlorine is not an effective way to kill algae, you won’t get a good kill rate using it. Chlorine is more for bacteria treatment or sterilisation.

Is algae harmful to humans and livestock?

A Harmful Algal Bloom (HAB), most commonly cyanobacteria (blue-green algae), can be toxic to humans and other animals. Algae are microscopic organisms that live in aquatic environments and photosynthesise to gain energy. In excess, these organisms become visible to the naked eye. Algal blooms vary in colour from brown, red, green or blue/green. Environmental factors such as increased temperature, high levels of nutrients (Nitrogen or Phosphorus), abundant sunlight and still or low-flowing water can trigger these events. HABs can lead to serious health effects in humans and animals such as; general paralysis, gastrointestinal illness, respiratory problems, liver damage and even death. Exposure to contaminated water bodies through both primary and secondary activities can lead to illness with mild symptoms similar to those of heat stroke and food poisoning. In the event of a harmful algal bloom, it is imperative that contact with the water body be avoided, including irrigation.






Safe For

Coptrol is safe in and around water bodies with the following uses:






Aquatic Blue is safe in and around water bodies with the following uses:

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