Lined Seahorse
Hippocampus erectus
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Suggested Tank
30+ gallons
Max Size
7 inches
Difficulty
Temperament
Description
The Lined Seahorse is an upright-swimming, prehensile-tailed fish that ranges from black and brown to gray, yellow or orange, often with fine white lines and mottling that shift to match its surroundings. It is extremely peaceful and slow-feeding, so it needs a species-oriented, low-flow tank at least 16-20 inches tall with abundant hitching posts (macroalgae, artificial plants, gorgonian branches) and no fast or aggressive tankmates. Plan on cooler temps (72-76°F), pristine water, and twice-daily targeted feedings of frozen mysis; captive-bred stock is far hardier than wild-caught.
Reef Safe
With caution
Environment
Requires a stable marine aquarium with gentle to moderate flow, excellent water quality, plenty of hitching posts, and calm tankmates. Prefers temperatures around 72-77 F and should be housed in a taller aquarium with low stress and low aggression.
Behavior
Slow-moving and deliberate, often perching with its tail wrapped around decor or macroalgae. Generally non-competitive and best kept with other peaceful tankmates that will not outcompete it for food.
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Lined Seahorse
Hippocampus erectus
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