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Dwarf seahorse (Hippocampus zosterae)
AI illustration, not an ID reference

Dwarf seahorse

Hippocampus zosterae

FishSaltwater

Care level
Demanding
Temperament
Peaceful
Reef safe
Yes
Recommended tank
40 L
Maximum size
5 cm
Temperature
22–25 °C
pH
8–8.4
Group size
≥ 2
Diet
Carnivore

Care at a glance

At just a few centimetres, the dwarf seahorse is one of the smallest seahorse species kept in the hobby, which is exactly why it suits a small, dedicated tank. Unlike larger seahorses, it can't hold its own in a regular reef tank: it's a slow eater that loses out to faster tankmates.

Keep it in its own calm tank with low flow, plenty of holdfasts, and only live food such as baby brine shrimp — it won't recognise dry food. Like other seahorses, it does best in a mature, stable tank and in pairs or small groups.

Good to know

  • Hard to wean onto dry food
  • Needs a mature, stable tank

Best not combined with

Related species

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.