CaribSea Life Rock Shapes 1 Tunnel, 1 Cave, 2 Arches 20lb
CaribSea Life Rock Shapes 1 Tunnel, 1 Cave, 2 Arches 20lb
LifeRock Shapes - 20 lb
The 20 lb CaribSea Liferock Shapes are uniquely structured aragonitic rock forms designed for reef and marine environments. With a surface area interspersed with micro and macro pores that create the perfect environment for the natural growth of beneficial, nitrifying bacteria. Made with natrual aragonite instead of the commonly used, and often hazardous concrete rock. The realistic look of the rock is created by an artificial coating that mimics the natural accumulation of coralline algae after years beneath the waves. Each CaribSea Liferock Shape features a combination of arches, rings, caves and tunnels, providing endless explorative opportunities for your tank inhabitants as well as offering an incredibly natural look and feel to each aquatic environment. The rock is safe for all fish species and invertebrates.
Feeding & Diet
Feeding & Diet
An opportunistic omnivore, the Pithos Crab will scavenge detritus, uneaten food, and algae — making it a natural cleanup crew member. Supplement with small meaty foods like mysis shrimp or pellets 2–3x per week if natural food sources are limited.
Care & Water Parameters
Care & Water Parameters
The Pithos Crab thrives in stable, well-maintained reef conditions. Target parameters: temperature 72–78°F, salinity 1.025–1.026 SG, pH 8.1–8.4, and alkalinity 8–12 dKH. A mature, established tank of at least 20 gallons is recommended.
Reef & Tank Compatibility
Reef & Tank Compatibility
Generally considered reef-safe. The Pithos Crab coexists well with most corals and peaceful fish. Use caution with very small invertebrates or slow-moving tankmates. Provide ample rockwork and hiding spots to reduce territorial behavior.
Size & Growth
Size & Growth
Pithos Crabs are typically shipped at 0.5–1.5 inches. They are slow-growing and generally remain small, making them well-suited for nano and mid-size reef systems.
Shipping & Live Arrival Guarantee
Shipping & Live Arrival Guarantee
All livestock ships with heat or cold packs as needed and is packaged for safe transit. We stand behind a live arrival guarantee — if your animal arrives DOA, contact us within 2 hours of delivery with a clear photo. See our full DOA policy for claim details.
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