Luis A M
Premium Member
The argentine,or patagonian seahorse was very popular in LFS 20 years ago.It is a hardy nice fish that adapts well to the tropical marine aquarium even if it comes from cold southern Atlantic waters. This is explained because it is adapted to live in shallow bays that can become warm under the summer sun.
Then the imported Brazilian H.reidi came.They were big,colorful and cheap.Local seahorse soon disappeared from the market.
But the recent inclusion of seahorse in the CITES had the paradoxical effect of bringing these fish again to LFS.These are a pair of 5cm high juveniles.
This seahorse was mostly unknown out of Argentina.It was considered a southern form of H.erectus,which I always thought to be wrong as our fish has different shape and colour,and unlike erectus gives birth to many hundred small,pelagic fry.
New books like Kuiter and Lourie don t mention it ,as if there were not seahorses down here.
Recently Piacentino & Luzzatto described it as H.patagonicus sp.nov.(Rev.del MACN 6,2)
Then the imported Brazilian H.reidi came.They were big,colorful and cheap.Local seahorse soon disappeared from the market.
But the recent inclusion of seahorse in the CITES had the paradoxical effect of bringing these fish again to LFS.These are a pair of 5cm high juveniles.


This seahorse was mostly unknown out of Argentina.It was considered a southern form of H.erectus,which I always thought to be wrong as our fish has different shape and colour,and unlike erectus gives birth to many hundred small,pelagic fry.
New books like Kuiter and Lourie don t mention it ,as if there were not seahorses down here.
Recently Piacentino & Luzzatto described it as H.patagonicus sp.nov.(Rev.del MACN 6,2)