I suggest you prepare a very tasty stuffed carp. Crucians are very useful for humans, as they contain easily digestible protein. Freshwater fish proteins are not only useful, but also unique, they contain amino acids that are essential for the human body. Useful properties of carp are due to the content of a large amount of calcium, it helps to strengthen the teeth, nails and bones. The caloric content of carp is quite low, so when you lose weight you can safely add it to the diet. The only drawback of carp, it is peculiar to river fish smell, but thanks to spices and marinade we get rid of it.