Description

Black Sand Cerith Snail (Cerithium sp.)

Essential Substrate Sifter & Micro-Algae Grazer for Reef Aquariums

Every thriving saltwater aquarium relies on a balanced cleanup crew to process waste before it degrades water quality. The Black Sand Cerith Snail (Cerithium sp.) excels in roles that few other invertebrates can match, combining surface algae grazing with active sandbed maintenance.

Key Benefits

1. Active Sandbed Sifting & Aeration

Black Sand Cerith Snails routinely burrow just beneath the surface of fine to medium sand substrates. As they move through the sandbed in search of organic matter, they gently stir and oxygenate the substrate, preventing detritus accumulation, clumping, and stagnant anaerobic zones.

2. Comprehensive Algae & Detritus Removal

Equipped with a specialized grazing mouthpart, these snails consume a wide variety of nuisance organics, including brown diatoms, green film algae, early-stage cyanobacteria, fish waste, and leftover food particles. Their compact, tapered shells allow them to reach tight crevices in live rock and clean along silicone seams and glass corners where larger snails cannot fit.

3. Completely Reef Safe & Peaceful

Cerithium snails pose zero threat to SPS, LPS, soft corals, clams, or delicate sessile invertebrates. Their small size and gentle movement ensure they will not bulldoze unsecured coral frags or disturb sensitive tankmates.

4. Hardy & Easy to Acclimate

Naturally inhabiting shallow tidal zones and seagrass beds, Black Sand Cerith Snails tolerate minor parameter fluctuations well and readily adapt to established marine systems.

Care & Compatibility Specifications

• Scientific Name: Cerithium sp.

• Adult Size: 1.5 cm to 2.5 cm (0.6 in to 1.0 in)

• Temperament: Peaceful / 100% Reef Safe

• Diet: Herbivore / Detritivore (Diatoms, film algae, detritus, uneaten food)

• Recommended Tank Size: 20 L (5 gal) and larger

• Stocking Recommendation: 1 snail per 5 L to 10 L (1.3 gal to 2.6 gal) of aquarium volume

Ideal Water Parameters

• Temperature: 24°C to 27°C (75°F to 81°F)

• Salinity / Specific Gravity: 34–35 ppt (1.025–1.026 SG)

• pH: 8.1 to 8.4

• Carbonate Hardness (dKH): 8 to 12 dKH

• Copper Tolerance: Zero — Never use copper-based medications in aquariums housing snails or invertebrates.

Acclimation & Care Tips

1. Slow Drip Acclimation: Like all marine invertebrates, Cerith Snails are sensitive to rapid changes in salinity and pH. Use a slow drip acclimation method over 45 to 60 minutes before gently placing them onto the substrate or rockwork.

2. Hermit Crab Caution: Keep plenty of empty, appropriately sized spare shells available if housing Cerith Snails alongside hermit crabs, as hermit crabs frequently target elongated Cerith shells for new homes.