Algae Quick Links
Coptrol specific use
Coptrol in effluent and waste water
Coptrol frequently asked questions
Coptrol in aquaculture
Algae control in poultry shedding
Coptrol environmental safety
Coptrol in golf courses and greens
Coptrol and hydroponics
Coptrol in drip irrigation and microsprays
Coptrol in drinking water
Algae control in reservoirs, dams,
Algae in Rice Crops
Coptrol in ornamental ponds
Coptrol use in farm dams and ponds
Coptrol use in mining and power stations
Coptrol use in Nurseries and Gardens
Coptrol Use in turf farms
Drinking water tanks
Kill algae in waterways and irrigation channels
Livestock Watering Troughs
Meet the Ruth Group
Coptrol export sales
Useful Links Page
How to use Coptrol in hydroponic systems
Controlling algae in a hydroponic system can be difficult.
When algae are present in a system:
They use up nutrients from the solution
After blooming and decomposing they remove dissolved oxygen from the system resulting in increased biological oxygen demand.
The resulting oxygen removal leads to root suffocation
Decomposing algae is also a food source for fungus gnats
Fungus gnats damage plant roots
Suffocated and damaged roots are ideal targets for Pythium attack.
What steps should be taken to stop algae growing?
Algae need light, water and food to grow. You cannot do much
about the water and the nutrients but you can stop the light.
Wherever light penetrates the nutrient solution action should be
taken to stop it. Make sure you have a light proof nutrient reservoir
made from opaque material and a lid. Then light proof all the
channels, the entry and exit points of the solution.
Recommended Dose Rates
If your initial source of water is a farm dam or pond Coptrol should
be used to eliminate algae.
It can even be used to prevent an algae bloom as it remains active
in the water until algae bloom and is never wasted.
Coptrol will not harm your plants
If algae are a problem in your water source follow this 5 step method to keep your waters clear and bright.
First identify the algae present. If you are not certain visit
. This site enables you to identify all the
algae in Australia.
Now calculate the volume of water to treat. Ignore depths
1 metre. We have a page which explains the methods
determine the amount of water to
treat. If you need
see How to
calculate the volume of water to treat
Next calculate the amount of Coptrol needed. An easy way
to calculate is:
a) If you are storing water in a farm dam or pond
If the algae is fine and free floating use 2 mL of Coptrol per 1000 Litres (1 cubic metre) of water. That is equivalent to 2 Litres of Coptrol per 1000 square metres of surface area.
If the algae is long and stringy use 5 mL per 1000 litres of water (1 cubic metre) or 5 Litres per 1000 square metres of surface area.
Dilute the required amount of Coptrol using a 1:10 or even a
The best application method is by spraying. Apply on a sunlit
wind free day when algae first appear. If this is impractical
b) If algae are circulating in your nutrient system
can be used to eliminate algae.
will not affect your plants.
Use 10 mL of Coptrol per 1000 litres of water for 7-10 days. Repeat
To control the fungus Pythium in lettuce crops,
add 30-50 mL of Coptrol per 1000 litres of
water continuously for 7-10 days. Repeat as
If you still need help call RCI at no cost to you.
where our free call numbers are displayed.
Or you can email RCI using this
Frequently Asked Questions
and Environmental Safety
Material Data Sheet
©Ruth Consolidated Industries Pty Ltd ©Rural Chemical Industries (Aust) Pty Ltd All Rights Reserved