---
title: Brochure - Coptrol Aquatic Algaecide - 251105
canonical: https://fernland.com.au/documents/911/
dateModified: 2026-07-12 07:55:23
summary: Technical Sheet
type: tech_sheet
---

# Brochure - Coptrol Aquatic Algaecide - 251105

> Technical Sheet

PRODUCT: COPTROL AQUATIC ALGAE CIDE
TARGET: ALGAE

[Image: Three photos showing Micro algae, Filamentous algae, and Blue Green algae]

Micro algae Filamentous algae Blue Green algae

For the safe and effective way to control all types of algae (including blue-green).

COPTROL
• Kills problem algae (including blue-green algae)
• Fast-acting (kills within 72 hours)
• Suitable for all water bodies (including drinking water)
• Safe to use around fish and livestock
• APVMA approved

SUITABLE FOR
| Small Pond | Large Pond | Small Dam | Large Dam | Lagoon | Lake |
| :--- | :--- | :--- | :--- | :--- | :--- |
| 0 - 15,000L | 15,000L - 50,000L | 50,000L - 1ML | 1ML - 10ML | 1ML - 10ML | 10ML+ |
| 0 - 20m² | 0 - 50m² | 50m² - 2,000m² | 2,000m² - 10,000m² | 2,000m² - 10,000m² | 10,000m²+ |

Coptrol is an Australian Made non-corrosive viscous liquid that kills algae quickly and can be used in almost any water body.

Coptrol provides quick relief to any algal situation (including toxic blue-green algae). Coptrol is safe to use in most water bodies, fresh or marine (including drinking water) and is harmless to stock, fish and wildlife.

SAFE FOR
Drinking Water, Irrigation, Stock, Fish, Aquatic Plants, Pets, Wildlife, The Environment & Hydroponics.

[Image: Product containers showing 1L, 15L, 20L, 200L, and IBC sizes]

20240308-V14

***

HOW TO USE:
COPTROL for ALGAE

Chelated Copper in Coptrol vs Copper Sulphate
When copper sulphate is added to water, it immediately precipitates and a great percentage of it is lost, thus requiring excessively large amounts to be used in order to get effective results as an algaecide.

Chelated copper in Coptrol is suspended in the water column and is only removed by reactions with algae, meaning there is far less copper placed into the environment initially meaning it is the more economical and ecological option¹.

In commercial fisheries or fish of value, please ensure your carbonate hardness is above 50ppm. With fish, you must treat the water body 1/3 at a time to avoid oxygen depletion. To do this, work out the total amount of Coptrol needed for the entire water body, then divide into thirds and treat 1/3 of the water body, waiting 14 days between each treatment.

APPLICATION RATES

| Where to Use | How Much to Use | How to Apply | How Often to Apply |
| :--- | :--- | :--- | :--- |
| Tanks and Troughs | Apply 2mL to 5mL Coptrol per 1,000L of water to be treated | Dilute the measured amount of Coptrol: 1-part Coptrol to 10 or 20 parts water. Once diluted, apply as evenly as possible over the water’s surface | One application is often enough. For heavily infested algal blooms, an additional treatment may be required after 10 to 14 days. |
| Dams, Ponds and Water Impoundments, including potable water | Apply 4.2L to 8.4L of Coptrol per 1,000 square metres of water surface area at an average depth of 1m or greater, OR 5L to 10L of Coptrol per 1ML of water | Dilute the measured amount of Coptrol: 1-part Coptrol to 10 or 20 parts water. Once diluted, apply as evenly as possible over the water’s surface | One application is often enough. For heavily infested algal blooms, an additional treatment may be required after 10 to 14 days. |

For Best Results:
Apply Coptrol in bright sunlight on a calm, wind-free day as evenly as possible to the water’s surface.

General Instructions
Treat the shoreline first to avoid trapping fish in the shallows. Only treat 1/3 of the water at a time to avoid oxygen depletion. Allow 10-15 days per treatment for oxygen levels to recover.
For Nitella and Chara, use at a higher ratio of 10L Coptrol per 1ML, or 5mL Coptrol per 1,000L of water.

Protection of Fish, Livestock, Wildlife and Others:
DO NOT treat water containing trout if the water is soft i.e the carbonate hardness of the water is lower than 50ppm.
DO NOT treat if the water’s surface temperature is below 16°C.
DO NOT treat dams used for drinking purposes by sheep grazing on RAGWORT.
DO NOT use on areas where large numbers of waterfowl are foraging on filamentous algae.

[1] Fitzgerald, G. P., & Jackson, D. F. (1979). Comparative algicide evaluations using laboratory and field algae. Journal of Aquatic Plant Management, 17, 66–71.