Description
The Murray River Freshwater Shrimp (Macrobrachium australiense) is a hardy, adaptable crustacean native to the Murray-Darling river system in southeastern Australia. Known for its semi-translucent body and long, slender pincers, this shrimp plays a vital role in natural ecosystems as both a detritivore and prey species. In aquariums, it is valued for its algae-cleaning abilities, peaceful nature, and fascinating behaviour, making it a functional and low-maintenance addition to freshwater community tanks or native biotope setups.
Features of a Murray River Freshwater Shrimp
-
Slender, semi-transparent body with variable light brown to grey coloration
-
Long front claws used for feeding and defense
-
Grows to approximately 6–8 cm in length
-
Peaceful temperament; suitable for community tanks
-
Active scavenger, feeding throughout the day and night
The Best Aquarium Size for Murray River Freshwater Shrimp
A minimum of 40 litres is recommended for a small group of Murray River Shrimp. A larger tank is ideal to support stable water conditions and prevent territorial behaviour among males. These shrimp prefer calm, well-oxygenated water with stable temperature and pH.
Tank Mate Compatibility for Murray River Freshwater Shrimp
This shrimp species is peaceful and can coexist with small, non-aggressive fish. Compatible tank mates include:
Diet for Murray River Freshwater Shrimp
Omnivorous scavengers, they feed on detritus, leftover fish food, algae, and biofilm. Their diet can be supplemented with algae wafers, shrimp pellets, blanched vegetables (e.g. zucchini, spinach), and small amounts of protein such as bloodworms or crushed fish flakes.
Aquarium Setup for Murray River Freshwater Shrimp
Aquarium Filtration
Use a sponge filter or gentle hang-on-back filter to ensure clean water without creating strong currents. Filtration should support stable biological conditions and high oxygen levels.
Aquarium Plants
Aquatic plants such as Java Moss, Water Sprite, and Vallisneria provide cover and surfaces for biofilm growth. Plants also help maintain water quality and support natural behaviour.
Aquarium Lighting
Moderate lighting is sufficient. Avoid high-intensity lights unless heavily planted, as shrimp prefer shaded or covered areas.
Aquarium Heating
Maintain water temperature between 18°C and 26°C. This species tolerates a wide range, but stability within this range is ideal for long-term health.
Aquarium Substrate
Fine gravel or sand is preferred. A natural substrate allows shrimp to forage and dig comfortably without risk of injury.
Aquarium Decorations
Provide plenty of hiding places using driftwood, leaf litter, rocks, or shrimp tubes. These shelters reduce stress and support moulting and breeding behaviour
