Australian Marron Education

The scientific name of Australia Marron is Cherax cainii.  Australia Marron are just one of many species of fresh-water crustaceans.

They are often confused with other species, such as yabbies, red claws, koonak and gilgie. However, Australian Marron are indigenous to the south west of Western Australia, and they require better quality water than most other fresh water crustaceans. Australia Marron are the largest commercially grown fresh water crustacean.

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Live Marron Colours

The shell colour of a live marron can vary from red or brown through to black or a highly vibrant blue colour. This is dependent on genetics but a common feature is that when cooked they all change to a very bright crimson red. 

The size of Australia Marron have been known to reach in excess of 2.0kg, however most sold within the commercial industry weigh between 150-300g.  This will take approximately eighteen months to three years to reach when optimum conditions are maintained.

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Australian  Marron - Highly Regarded by Chefs Around the World

The recovery rate of meat per animal is among the highest of all crustaceans at around 40 – 50%.  The flavour of Australian Marron is quite subtle, slightly sweet with nutty overtones and a firm consistency.  Regardless of size, marron are one of very few animals that retain the same delicate taste and texture.  

If you are interested in purchasing live marron, please view our price list.

Live Marron For Cooking

Australia Marron are fast becoming regarded by leading chefs around the world as a premier crustacean and are regularly being presented in international cooking contests.

Frequently Asked Questions

Yes they make a great addition to your fish tank.  Definitely a conversation starter!  However it is important to remember that they can climb and if there is a way to climb out they will find it!  Also of importance is that you need to be aware that most town water contains high levels of chlorine and this can cause deaths with marron.  To prevent this, preferably rain water should be used to top up ponds, tanks etc however if this is unavailable you need to aerate your water for 48 hours prior to adding to pond or tank.
No.  However due to the difference in pricing of this variety they are not normally purchased for consumption.  The choice is yours.
Marron can survive out of water for up to three weeks in ideal conditions.  These conditions would include low temperature and moisture in the air.  An important fact to remember is that once the gills of the marron have dried out, they cannot be returned to the water.
Technically marron are omnivores and as such enjoy a varied diet of both protein and plant matter.  We have found however that the best source of diet you can provide for your marron is by feeding them one of the commercially available marron pellets.  This ensures that their dietary requirements are being met as stringent quality control keeps the protein and mineral levels constant.  It also ensures that water quality won’t become polluted due to the feed.
In general terms marron are a very hardy species.  This said there are several factors that will help them to survive.  Salinity levels must be kept low.  Marron can survive in saline water but should the levels reach 15 parts per thousand (ppt) deaths may occur.  Salinity levels from 6ppt and above will decrease the growth rate of your marron.  

Oxygen levels also need to be maintained.  These levels need to maintained above 6 parts per million (ppm) in order to keep marron happy.  Levels of 3ppm and below will stress the animals out and deaths may occur.

Temperature will also play a part in the survival of your marron.  Although marron can survive in very low temperatures, to achieve growth your marron will need the temperature above 12 degrees Celsius.  Optimum growth will occur at 24 degrees.  Above this temperature the growth rate will start to decline with mortality rates being high with marron kept at 30 degrees onwards.
The term 'flyer' refers to marron that are in the top 5% of growth rate expected for a marron.  These marron will continue to achieve higher than expected growth rates throughout their life if the conditions necessary for growth are met.  Obvious advantages of this type of marron include the faster growing rate and less production costs involved with them reaching a commercially viable size.  Disadvantages would be that because they put everything into growing at a faster rate they will usually not produce as many babies as breeders.
This was a selective breeding program initiated by the fisheries department of WA that entailed cross breeding the 'flyers' of various rivers in Western Australia and marron with certain desirable traits and qualities.  From these breedings the flyers were kept and again they were bred for successive years.  The end result was hopefully a marron that would be faster growing and more desirable.  

True Blue Marron was lucky enough to receive some of these marron at the completion of the program and we have continued to grow them on separately to continue with the enhancement of these marron.  For any enquiries regarding stock of these marron please contact us.
Prior to the arrival of your marron it is important to get the tank ready for them.  As mentioned above water quality, pH levels and temperature will play a part in achieving the best result with your marron.   Once this has been achieved and your marron have arrived you should slowly acclimatise them from the temperature within their packaging to the temperature within the tank.  For more information on this please refer to the 'marron fact sheet' that will accompany your marron.
By contacting ourselves or The Fisheries Department of Western Australia.

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We have never encountered any problems with having marron living with other types of fish.  Provided that there is adequate room for all occupants and some landscaping within the tank there should be no problems at all.  Problems could arise if your tank is over populated as they are territorial to a certain degree and like to have their own space at times.

» Click here to make an enquiry about purchasing Australia Marron.