Large Dark Saddled Seahorse

Lined Seahorse (Hippocampus erectus) — Captivating and Peaceful The Lined Seahorse is a stunning addition to established reef and seahorse-specific aquariums. These upright swimmers thrive in calm, low-flow environments with plenty of seagrass, macroalgae, or artificial hitching posts to anchor themselves. Care Requirements Maintain stable water conditions: 72–78°F, pH 8.1–8.3, and moderate salinity. Seahorses are slow feeders and prefer small, frequent meals of frozen mysis shrimp or copepods — feed 2–3 times daily. They require a dedicated tank or species-specific setup, as they cannot compete with aggressive feeders and may be nipped by faster fish. Provide gentle water movement and low lighting to reduce stress. Pair only with calm, non-aggressive tankmates. Seahorses are monogamous and mate for life, making them fascinating to observe. These delicate creatures demand patience and attention but reward keepers with graceful, mesmerizing behavior. Ideal for experienced aquarists seeking a premium, interactive livestock addition.