aernympha
its not the fact their putting the fish in the tank, its the size of the tank and number of fish they put in at once without cycling and disregarding the fact that seahorses shouldn't be kept in a tank with boisterous fish ie the clowns and tang.
whilst i dont agree with the fact that seahorses should be kept in aquaria, i realise that public (and some more experienced home) aquarium keepers can help the endangered stocks in the wild by breeding and selling as many species as they can, in fact i know at least 1 person in aberdeen is breeding seahorses and selling them to shops all over the uk.