Randall's Goby (Amblyeleotris randalli), also known as the Randall's Shrimp Goby, is a peaceful and hardy fish that pairs with pistol shrimp for a symbiotic relationship. Here's how to care for it:
Tank Setup
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Tank Size: A minimum of 20 gallons is recommended.
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Substrate: A sand substrate is essential since Randall's Gobies burrow and create tunnels, especially when paired with a pistol shrimp.
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Rocks/Caves: Provide plenty of rockwork and hiding spots where the goby can retreat.
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Tank Mates: Peaceful, non-aggressive fish are ideal. Randall's Gobies pair well with pistol shrimp (especially Alpheus species). Avoid aggressive fish or those that may outcompete them for food.
Water Parameters
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Temperature: 72-78°F (22-26°C)
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pH: 8.1-8.4
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Salinity: 1.023-1.025 (specific gravity)
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Water Quality: Keep ammonia and nitrite at 0, and nitrate levels low (<20 ppm).
Diet
Randall's Goby is a carnivore and benefits from a varied diet:
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Primary Diet: Small meaty foods such as mysis shrimp, brine shrimp, and finely chopped seafood.
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Supplements: Vitamin-enriched frozen or live foods are ideal to maintain health.
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Feeding Frequency: Feed 1-2 times a day, ensuring food reaches the goby since they may be slow feeders.
Behavior & Compatibility
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Symbiotic Relationship: They form a unique bond with pistol shrimp, where the goby stands guard while the shrimp digs and maintains their shared burrow.
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Temperament: Generally peaceful and non-territorial, but it may defend its burrow area from other bottom dwellers.
Special Considerations
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Lid Required: They are known jumpers, so a tight-fitting lid or mesh cover is crucial to prevent escape.
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Burrowing Activity: Expect them to move sand around the tank. Make sure your rockwork is secure to prevent it from toppling.
With proper care, Randall's Gobies make an excellent and fascinating addition to a reef or community tank.
Maintaining an Prawn Goby and its pistol shrimp partner can be a unique and captivating addition to your marine aquarium. The successful establishment of their mutualistic relationship is a key aspect of their care. Proper feeding, water quality, and a suitable environment will contribute to their well-being and ensure their long-term health in your tank.
