Hippocampus semispinosusis commonly referred to as Half-spined seahorse. Difficulty in the aquarium: Only for advanced aquarists. A aquarium size of at least 250 Liter is recommended. Toxicity: Toxic hazard unknown.
The offspring of Hippocampus semispinosus are possible. Unfortunately, the number of offspring is not large enough to cover the demand of the trade. If you are interested in Hippocampus semispinosus, please ask your dealer for offspring. If you already own Hippocampus semispinosus, try breeding yourself. This will help to improve the availability of offspring in the trade and to conserve natural stocks.