Mysida (Mysid Shrimp)

Mysid shrimp—often called “opossum shrimp”—are small, shrimp-like crustaceans prized as a highly nutritious live or frozen food for both marine and freshwater fish. Their active swimming behavior and substantial size make them an excellent option for larger, predatory, or hard-to-feed species.

Why Use Mysid Shrimp?

1. Excellent Feeding Response
Mysids swim in short, darting bursts through the water column, triggering strong hunting instincts in fish. They are particularly effective for:

• Seahorses

• Pipefish

• Lionfish

• Groupers

• Larger wrasses and anthias

2. Superior Nutritional Value
Compared to brine shrimp, mysids generally offer:

• Higher protein content

• Better lipid profile

• Naturally occurring omega-3 fatty acids

This makes them more suitable as a staple food rather than just an occasional treat.

3. Appropriate Size for Medium to Large Fish
Their larger body mass provides a more substantial meal, reducing the need for excessive feeding volume.

Use in Reef Aquariums

In reef systems, mysid shrimp are commonly used for:

• Target feeding LPS corals

• Feeding non-photosynthetic corals

• Conditioning breeding fish

• Supporting carnivorous species

When offered live, they may survive temporarily in the tank, creating natural hunting opportunities.

Freshwater vs. Marine

Different mysid species inhabit freshwater and marine environments. Always ensure the type you purchase matches your system’s salinity requirements.

Feeding Tips

• Rinse frozen mysids before use to reduce excess nutrients.

• Offer in portions appropriate to your livestock size.

• Rotate with other high-quality foods for balanced nutrition.

Mysid shrimp are one of the most nutritionally robust crustacean feeds available to aquarists. Whether used live or frozen, they provide a protein-rich, highly attractive food source that supports growth, coloration, and overall vitality.