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.

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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.

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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.

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Freshwater vs. Marine

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

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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.

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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.