Pink Mouthed Murex (Phyllonotus erythrostomus) – Complete Care Guide

General Information

The Pink Mouthed Murex, scientifically known as Phyllonotus erythrostomus, is a stunning marine gastropod mollusk belonging to the family Muricidae, commonly referred to as murex snails or rock snails. This species is admired for its striking shell, which features intricate spines and a vibrant pink to red interior, making it a favorite among shell collectors and marine enthusiasts. While not as commonly kept in aquariums as other marine species, it can be a fascinating addition to specialized setups.

Native to the warm waters of the Eastern Pacific, particularly around the Gulf of California and the coasts of Mexico, this snail plays an important role in its natural ecosystem as a predator of bivalves and other mollusks. Its unique feeding habits and beautiful shell make it a species of interest both scientifically and aesthetically.

Care

The Pink Mouthed Murex is best suited for aquarists with some experience, as it requires specific conditions to thrive. It should be housed in a well-established marine aquarium with stable water parameters. These snails are not reef-safe, as they are carnivorous and may prey on other mollusks or sessile invertebrates in the tank. A species-only tank or a setup with compatible tank mates is recommended.

Provide plenty of live rock and sandy substrate to mimic their natural habitat. They are relatively hardy but require consistent water quality and a diet that meets their carnivorous needs. Avoid housing them with other mollusks you wish to keep, as they may become prey.

Diet and Feeding

In the wild, Phyllonotus erythrostomus is a carnivore that feeds on bivalves and other mollusks. In captivity, they can be fed a diet of meaty foods such as chopped shrimp, clams, or other marine-based proteins. Feeding should occur every few days, and care should be taken not to overfeed, as uneaten food can degrade water quality.

Behavior and Compatibility

The Pink Mouthed Murex is a solitary species that does not require social interaction. It is generally peaceful but can be predatory towards other mollusks. Its slow movement and methodical feeding habits make it an interesting species to observe. However, its predatory nature means it is not suitable for community tanks with other invertebrates.

Health and Common Issues

This species is relatively hardy but can be sensitive to poor water quality. Maintaining stable salinity, temperature, and pH levels is crucial. Regular water changes and monitoring for ammonia or nitrite spikes are essential to their health. Shell damage can occur if calcium levels are insufficient, so ensure the water has adequate calcium to support shell growth.

When selecting a specimen, look for a snail with an intact shell and active movement. Avoid individuals with visible damage or signs of lethargy.

Habitat

Phyllonotus erythrostomus is native to the Eastern Pacific, particularly the Gulf of California and surrounding regions. It inhabits rocky and sandy substrates in shallow coastal waters, often at depths of up to 30 meters. These environments provide ample prey and hiding spots, which are crucial for their survival.

To replicate their natural habitat, provide a sandy substrate and live rock in the aquarium. Moderate water flow and stable conditions will help them feel at home.

Common name: Pink Mouthed Murex