The same is true of adult brine: they are largely devoid of nutritional value when you purchase them at the local petshop, and it is important to enrich them before feeding brine shrimp to your fish. For live adult brine shrimp, it is relatively simple to enrich them with a HUFA supplement (such as Selcon or Zoecon), and that greatly enhances the nutritional value of these animals as a food for your aquarium pets. Brine shrimp become more efficient feeders as they grow, and as a result, larger Artemia can be enriched in shorter times due to that increased efficiency of filter-feeding. In fact, although live Artemia can benefit from periods of enrichment equivalent to those of the nauplii, adults can be significantly enriched in as little as about 1-2 hours of feeding in a HUFA supplement. Be enriching live brine prior to them being introduced to your reef aquarium, you not only provide a popular treat to your animals, but also gain the maximum nutritional benefit from feeding these foods to your pets.