Margarita Snail - Margarites pupillus
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The Margarita Snail (Margarites pupillus) is a small, peaceful marine snail known for its colorful shell and active grazing behavior. This invertebrate is an excellent addition to reef aquariums, helping control algae growth on rockwork and substrate.
Common Name: Margarita Snail
Scientific Name: Margarites pupillus
Family: Trochidae
Size: Up to 1 inch (2.5 cm)
Temperament: Peaceful
Difficulty: Easy
Reef Safe: Yes
Native Region: Found throughout the Indo-Pacific, commonly inhabiting shallow reef flats and rocky substrates where algae is abundant.
Tank Size: Minimum of 10 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate: Live rock and coral rubble with ample algae for grazing.
• Algae Control: Grazes on film algae and biofilm, helping maintain clean rock surfaces.
• Behavior: Active and slow-moving; often seen on rocks or substrate while feeding.
• Diet: Herbivorous—supplement with dried seaweed or algae wafers if natural algae is limited.
• Tankmates: Compatible with most reef fish and invertebrates; avoid predatory crabs or fish that may harm the snail.