The goldfish or goldfish is one of the favorite aquatic pets in homes . Throughout their life, which in captivity can last more than ten years, some specimens grow a lot – the largest known lived in 2010 in the Netherlands and exceeded 45 centimeters – but their size does not seem to be related to their dimensions. physical aspects of their habitat , be it fish tanks, aquariums or ponds, as some owners suspect.
Among the factors that define the size of this ornamental fish with the scientific name Carassius auratus are, above all, genes, diet, temperature and water quality . That is why it is important to renew it often, to eliminate the remains of biological decomposition and certain proteins that prevent growth.
Likewise, their social habits are decisive. The carp tends to form groups with dominant individuals –the largest, a priori–, who occupy microhabitats where there is access to the best food.
These specimens will develop more than their congeners as long as they maintain hegemony during the first stages of their life, when the Carassius auratus gives the lug.
