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Margarita snails are commonly sold for reef cleanup but they are actually cold-water snails from the Pacific Northwest - they live 2-3 years in 65-70°F coldwater tanks but typically die within 6 months in warm tropical reef setups. Often mis-sold by LFS unaware of the temperature mismatch. Verify temperature compatibility before purchase.
Native range: Eastern Pacific (cold-water). Most US trade specimens come through marine wholesale suppliers in Indonesia, the Philippines, Hawaii, and the Caribbean. Wild collection remains the primary sourcing method for the majority of marine inverts - few are captive-bred at commercial scale. Quality of acclimation at the wholesale/retail stage is the biggest single predictor of long-term survival in home aquaria.
Tank size: 20 gallons. Parameters: temperature 60-72°F (TEMPERATE - not for tropical reefs), salinity 1.022-1.026, plus the standard reef tank requirements - stable calcium 420-440 ppm, alkalinity 8-10 dKH, magnesium 1300-1400 ppm, nitrate under 25 ppm, phosphate under 0.05 ppm. The species requires conditions consistent with a healthy reef tank rather than nutrient-stripped sterile water - well-established systems with diverse microfauna and biofilm typically support these inverts better than newly-cycled tanks.
Lighting: depends on species. Photosynthetic inverts (clams, anemone-symbiotic species) require high-PAR reef LED lighting. Filter-feeders (worms, scallops) prefer moderate lighting and benefit from particulate-rich water. Flow: moderate, indirect flow works for most inverts - direct high-velocity flow stresses or damages soft-bodied species.
Acclimation: drip acclimate over 2-4 hours for hardy species, 4-8 hours for sensitive species (Linckia stars, sea hares, demanding nudibranchs). Never expose inverts to air during transfer - capture in a bowl underwater and transfer wet.
Margarita Snail diet: Hair algae, diatoms, biofilm. Feeding strategy depends on dietary type. Algae eaters require established tanks with biofilm and microalgae growth - new tanks lack the algal base they need. Carnivore inverts (starfish, some snails) need targeted meaty feedings 2-3x weekly. Filter feeders (clams, worms, scallops) need phytoplankton in the water column. Photosynthetic species need adequate lighting plus supplemental amino acid or coral food dosing.
Safe: Cool-water tank inhabitants.
Avoid: Tropical reef setups (will die within months).
Not captive bred.
Temperature-driven mortality (most common); misrepresentation at point of sale.
Margarita snails are commonly sold for reef cleanup but they are actually cold-water snails from the Pacific Northwest - they live 2-3 years in 65-70°F coldwater tanks but typically die within 6 months in warm tropical reef setups. Often mis-sold by LFS unaware of the temperature mismatch. Verify temperature compatibility before purchase. Most US trade specimens come through marine wholesale suppliers in Indonesia, the Philippines, Hawaii, and the Caribbean.
Parameters: temperature 60-72°F (TEMPERATE - not for tropical reefs), salinity 1.022-1.026, plus the standard reef tank requirements - stable calcium 420-440 ppm, alkalinity 8-10 dKH, magnesium 1300-1400 ppm, nitrate under 25 ppm, phosphate under 0.05 ppm. The species requires conditions consistent with a healthy reef tank rather than nutrient-stripped sterile water - well-established systems with diverse microfauna and biofilm typically support these inverts better than newly-cycled tanks.
The Margarita Snail is rated advanced (temperature) difficulty on this care sheet. It needs a tank of at least 20 gallons, a temperature of 60-72°F (TEMPERATE - not for tropical reefs) and salinity of 1.022-1.026. Adults reach about 0.5-1 inch and live 6 months in tropical, 2-3 years in temperate. Margarita snails are commonly sold for reef cleanup but they are actually cold-water snails from the Pacific Northwest - they live 2-3 years in 65-70°F coldwater tanks but typically die within 6 months in warm tropical reef setups.
Feeding strategy depends on dietary type. Algae eaters require established tanks with biofilm and microalgae growth - new tanks lack the algal base they need. Carnivore inverts (starfish, some snails) need targeted meaty feedings 2-3x weekly. Filter feeders (clams, worms, scallops) need phytoplankton in the water column. Photosynthetic species need adequate lighting plus supplemental amino acid or coral food dosing.
Temperature-driven mortality (most common); misrepresentation at point of sale. Keeper note: Do NOT buy for tropical reef setups (78°F+). Suitable for temperate tanks running at 65-70°F. The cheap LFS pricing reflects the high mortality rate, not low value.
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