Overview
The Dwarf Seahorse (Hippocampus zosterae) is a advanced saltwater species known for its tan-white (also yellow, black) coloration. Tiniest seahorse. Mid to Bottom.
Origin & Appearance
Origin: Western Atlantic/Gulf of Mexico.
Colors: Tan-White (also Yellow, Black).
Body Shape: Seahorse (upright). Typical adult dimensions: 1.0 x 0.4 x 2.5.
Sexual Dimorphism: Moderate; males have brood pouch.
Tank & Water Requirements
| Min Tank Size | 5 gallons |
| Temperature | 72–79°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | medium |
| Plant Safe | mostly |
| Aquarium Position | Mid to Bottom |
Behavior & Activity
Tiniest upright swimmer; barely moves — clings to grass/algae; dorsal fin flutters; suction-feeds on passing copepods
Speed: 10/100Aggression: 1/10diurnalSchooling (6+)
Breeding
Moderate; male carries eggs in pouch
Common Diseases
💊 Bacterial💊 vibrio💊 gas bubble disease💊 fragile
Expert Notes
Tiniest seahorse; needs live baby brine shrimp