Tanganyika Crab
Platythelphusa armata
Tanganyika Crab (Platythelphusa armata) — Easy care, Peaceful, under Other. Minimum tank in the app: 15.9 US gal min; aim for 75–82°F and pH 6.5–8. The Tanganyika Crab is an engaging addition for both beginner and seasoned aquarists, well-suited for peaceful setups.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Various
- Africa
Regional colours match the stocking calculator’s origin map.
Tanganyika Crab Tank Setup
Create a balanced layout featuring both open swimming areas and plenty of cover like rocks and plants. A fine substrate is ideal for their scavenging habits, while gentle water flow will help them feel secure. Maintain stable pH and temperature within their range to ensure optimal health.
What Do Tanganyika Crabs Eat?
Feeding should be conducted with a variety of foods, including sinking pellets and detritus, to cater to their omnivorous diet. They are not fast eaters, so allow time for all individuals to access food; overcrowding can increase competition and stress.
Tanganyika Crab Tank Mates
Ideal companions include other peaceful bottom dwellers or mid-water fish of similar size, avoiding aggressive or overly active species that may outcompete them for food. Intraspecies aggression is rare, but overcrowding can lead to stress; aim for groups of at least three while ensuring sufficient space.
Are Tanganyika Crabs Good for Beginners?
In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the need for cover and space, leading to stress or reduced activity. introducing medications containing copper can be detrimental, as these crabs are highly sensitive to such substances.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.




