Description
Water Cow / Spotted Sleeper Goby (Eleotris picta)
Overview
The Water Cow Goby, also known as the Spotted Sleeper Goby, is a robust, bottom-dwelling fish known for its thick body, calm behaviour, and attractive spotted pattern. Its laid-back nature and unique appearance make it a standout addition to larger brackish or freshwater aquariums.
Origin
Found throughout the Indo-Pacific, including Indonesia, Papua New Guinea, and northern Australia. Inhabits slow-moving rivers, estuaries, mangrove systems, and coastal brackish zones.
Feeding
Carnivorous. Accepts meaty foods such as sinking pellets, frozen shrimp, bloodworms, and small fish. Provide a varied protein-rich diet for best health and growth.
Tank Mates
Best kept with peaceful to moderately sized tank mates. Suitable companions include larger tetras, rainbowfish, peaceful cichlids, monos, scats, and other non-aggressive brackish/freshwater fish. Avoid very small fish or shrimp that may be eaten.
Aggression
Generally peaceful but territorial toward its own kind, especially in small tanks. Keep singly unless housed in a very large aquarium with multiple hiding spaces.
Experience Level
Recommended for intermediate aquarists due to its size, dietary needs, and preference for well-maintained water conditions.
Water Parameters
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Temperature: 72°F – 82°F (22°C – 28°C)
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pH: 7.0 – 8.2
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Hardness: 8 – 20 dGH
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Salinity: Freshwater to low-end brackish (up to 1.008 SG) depending on origin and acclimation
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Notes: Provide sand or fine gravel substrate with caves or driftwood for shelter.
Calm, distinctive, and hardy when properly cared for, the Water Cow Goby is an impressive and rewarding addition to spacious freshwater or brackish aquariums.