Margarita Snail

Margarites pupillus

Identification	Small, rounded shell with a pearlescent sheen; gray-green to brown coloration
Maximum Size	0.75 inches
Origin	Eastern Pacific, California to Alaska
Minimum Tank Size	10 gallons
Reef Compatibility	Reef safe

Behavior

A cold-water species that thrives in cooler reef tanks (60–72°F). Highly active algae grazer; one of the best options for tanks kept at lower temperatures.

Diet & Feeding

Herbivore. Grazes on film algae, diatoms, and hair algae from rock and glass.

Cautions

Prefers cooler water — may not do well in tanks above 74°F. Best suited for coldwater or cool-running reef systems.