Hydro trainers for dogs do not need any special legal training. However, there are various further education, training and certification courses that can be taken as such in order to deepen one's knowledge and skills in this field. Such trainings are offered for example by specialized dog schools, animal physiotherapists or experienced aqua trainers. It is important that a canine hydro fitness trainer has a good knowledge of canine anatomy, physiology and biomechanics, as well as experience working with dogs in water.