Angelfish are popular for both freshwater and saltwater aquariums. When deciding on the best angelfish diet, it is important to consider the specific kind of angelfish being fed, as the saltwater and freshwater types have very different needs. Some of the different kinds of saltwater angelfish also have very different feeding habits. It's extremely important to consider their natural foods and habits in order to choose the best angelfish diet. Fish being raised for show or breeding should be fed diets rich in live and natural foods, to promote the best color, size and vigor.
Freshwater angelfish can be fed a good quality commercial angelfish diet. Since there are many different varieties to choose from, the best way to decide what to feed your angelfish is to look at the contents of the food. There should be plenty of natural ingredients included, such as brine shrimp and fly or mosquito larvae. Avoid foods that use excessive fillers, like corn meal and soy.
One consideration when choosing an angelfish diet is whether or not to use live foods. Often, live foods are recommended, but some of them can introduce disease into the aquarium. Tubifex worms in particular are known to carry disease that can cause illness or death in aquarium fish. When choosing live foods, look for foods that are raised in captivity, not gathered from muddy streams and murky ponds. Brine shrimp are easy to hatch in captivity and much loved by angelfish.
When live foods are not available, another good choice for an angelfish diet is freeze-dried or frozen foods. These are unlikely to carry disease, since they have been processed, and are easy for busy people to keep on hand to feed their angelfish on a regular basis. Select foods that have been processed by reputable suppliers for best results.
Choosing a saltwater angelfish diet is mainly a matter of concentrating on the foods that the angelfish eat naturally. Blue angelfish, for example, eat mainly sponges in the wild, and it is important that the diet for this fish include sponge. A saltwater angelfish diet can include such things as ground beef heart mixed with plain gelatin, chopped earthworms and other protein-rich foods. Angelfish that are omnivorous, such as the gold angelfish, should also be fed dried algae and other sources of vegetable protein, which is often included in commercial angelfish diets.