In Romania, the living environment of salmonids is the mountainous and pre-mountainous waters, the alpine lakes and the reservoirs built on mountain rivers. Improving living conditions of salmonids involves work on stabilizing mountain water courses, regulating their flow, reducing the transport of alluviums. Salmoniculture includes concerns about artificial growth and amelioration of Salmonidae populations in special resorts called trout. The researches were carried out at SC Cascada Laur SRL Moroeni, a specialized breeding farm. Having a land with very poor agricultural potential, but conducive to the development of an aquaculture activity, on the Ialomita River, in 2007, the company decided to build a farm for the breeding and breeding of trout. The technical documentation has been carried out and the infrastructure of this economic unit has begun.The pond basins have a wooden trunk shape with dimensions of: 4.00 x 20m - 3 pools; 3.25 x 9.70m - 4 pools; 12.80mx 2 m - 1 pool and a pool of 12.00 x 6.00m. The main features of the buildings: - Soil basin (trowel), trout for breeding and fattening of the trout, waste water basin, incubation micro station, filter. Economic growth of salmonids: a viable alternative to protecting the natural resources of the planet; an important source of animal protein, easily digestible; have a determining role in maintaining human health; efficient valorization of feed; obtaining constant productions throughout the year; low crop areas, high growth densities, exploitation from the piscicultural point of mountain accumulation lakes and impassable land for agriculture; reduced expenses with the staff employed; meeting the demanding tastes of consumers.