Three culture systems were designed for raising the seahorse, Hippocampus reidi, in order to evaluate the most efficient one for rearing this species under controlled laboratory conditions The brood was obtained of the parentales of the exhibition aquarium of Mundo Marino. The first system consisted of a floating mesh cage of burlap, 180L capacity, located within the main aquarium of the Marine World. 540 individuais were placed within this system. The second system was conformed by two aquariums of 20L capacity each, with water recirculation through an external filter of coral rocks and oyster shells, where 124 juveniles were introduced. The third system was based on two tanks, 500L capacity each, filled half way with sea water filtered from the main aquarium. Each of them contained 750 individuais, obtaining a density of three individuais per liter for all three Systems. The length of the newly born seahorse babies was in average 8mm and they were fed with newly hatched Artemia during the first two weeks and later the diet was enriched with soy bean flour and banana. The experience with the floating cage was not satisfactory since all the seahorses within this system died within the first seven days. After four weeks a survival of 2.42% was obtained with the system of recirculation, while in the tanks one and two only a 0.9% and a 6.6% of the individuais survived respectively.