A striking, fully aquatic freshwater crab endemic to Lake Matano in Sulawesi, Indonesia. Recognizable by its pale yellow-orange body covered in dark panther-like spots. They are opportunistic scavengers and predators that will hunt snails, shrimp, and bottom-dwelling or sleeping fish. They are notorious escape artists and require a very tight-fitting lid. Unlike many crabs, they do not require a land area, though they need plenty of underwater rock caves.
At a Glance
Tank Requirements
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Water Parameters
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Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Males possess a narrow, pointed abdominal flap underneath. They are highly territorial and aggressive toward other males. It is strictly recommended to keep only one male per aquarium to prevent fatal fights.
Differs in 3 traits from base species
Also known as: Standard, Unsexed
Female
Females have a wide, rounded abdominal flap (used for carrying eggs). They are slightly less aggressive toward each other and can potentially be kept in small groups in sufficiently large, heavily rock-scaped aquariums.
Differs in 3 traits from base species
Also known as: Female Crab
Panther Crab Care Guide Summary
The Panther Crab, scientifically known as Parathelphusa pantherina, belongs to the Invertebrates family group. Adults reach a maximum size of approximately 10 cm and have a depressed body shape with a moderate growth rate. Classified as aggressive, this species primarily occupies the bottom zone of the aquarium and produces a medium level of biological waste.
To thrive, the Panther Crab requires a freshwater only aquarium with a minimum volume of 75 litres and a tank length of at least 60 cm. Water temperature should be maintained between 26°C and 30°C, with a pH range of 7.5–8.5 and a general hardness of 6–15 dGH. A moderate water flow is preferred. An aquarium test kit can help you monitor these values.
Due to its specialist needs, the Panther Crab is best suited for fishkeepers who can provide a carefully planned setup. This species is available in 2 varieties: Male and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Panther Crab Habitat Setup
When setting up an aquarium for the Panther Crab, a moderate water flow best suits their natural preferences. Because this species occupies the bottom zone, the aquarium layout should prioritise sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour and smooth gravel or rounded substrate to protect their sensitive barbels. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper, expect substrate disturbance, so lightweight décor should be secured, and live planted layouts may be difficult to maintain, as this species tends to uproot or consume vegetation. Browse aquarium sand substrate options to find the best fit.
Panther Crab Compatibility Notes
Classified as aggressive, the Panther Crab is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, any fish small enough to fit in its mouth will likely be eaten, ornamental shrimp are not safe companions, snails will be treated as food rather than tankmates, conspecific aggression can be intense, especially in smaller tanks, and territorial behaviour may cause issues if hiding spots or floor space are limited. Selecting tankmates that favour different water layers from the bottom zone can help reduce competition and territorial overlap.
Panther Crab Feeding & Diet Considerations
The Panther Crab is a predatory species that will readily consume small fish, so nano or bite-sized tankmates should be avoided, will hunt and eat ornamental shrimp, making it unsuitable for shrimp-focused setups, actively feeds on snails and can be used as a natural snail population control, will eat fry, so breeding efforts in the same tank are unlikely to succeed, and is primarily active at dusk and dawn, so offering food shortly after lights-off ensures it receives adequate nutrition. Find quality Panther Crab fish food for this species.
Frequently Asked Questions About Panther Crab
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