Fatty acids

Fatty acids are a storehouse of energy for most fish. They provide stamina. Carbohydrates
can also do this job. It is also seen that some of the predatory fish species require some
source of fish oil in their diet too. Fish that live within the confines of an aquarium are
naturally prone to obesity. They do not use up their excess energy in swimming long
distances or looking for food. In most cases, excess fat can be damaging to the general
health of the fish. Some fish lose their reproductive capabilities if there is too much body
fat.