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How to Care for an Angelfish: 11 Steps (with Pictures) - wikiHow
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The Yellowhead Angelfish has the typical shape for a dwarf species with a small elongated oval shaped body, but with more truncated rounded fins than most. Males also have slightly more elongated dorsal and anal fins than females. Reef Culture Technologies (RCT) in Hawaii reports their adults reaching 4.5”, but most wild caught will be smaller at about 3.5” (9 cm) in length. Their typical lifespan is 6 years but they could live longer with proper care.This fish is described by its common name 'yellowhead', reflecting this bold aspect of its appearance as it reaches full size. The bright yellow to gold area reaches from the snout to about 1/3 of the body, then it abruptly changes to a blackish blue color which is followed by a bright yellow to gold tailfin. There is a blue ring around eye in of a “C” and a little tiny blue spine on the cheek. The pectoral, fins, pelvic fins, and the first three or four dorsal spines are yellow, then the rest of the dorsal and anal fins are blackish blue with blue outer edges. Juveniles at about the age of 125 days, look very similar to the adults except for their size and they have a little eyespot on the back of the dorsal fin.This dwarf angel looks very similar to the Bicolor Angelfish from the Pacific Ocean. Both have a body color that is yellow in front, a dark bluish black to the back, and a yellow tail. However the Bicolor is much larger, reaching about 6” in length, and has a blue mark on the nape of its head. It lacks the blue ring around the eye seen on the Yellowhead.This fish is also similar to the juvenile form of its very close relative, the Hotumatua's Angelfish . But the Hotumatua's differs in that it has a prominent blue to black spot just behind the eye, less yellow on the head area, and a deep brown body that lightens to a tannish yellow as an adult.
Angelfish are a relatively hardy species of fish and can live for 5-10 years when provided with adequate care and excellent water conditions.
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The Altum Angelfish is very similar to the wild form of the other angelfish species. But It is larger both in length and in height. It generally reaches about 7 inches (18 cm) in length and is about 9 inches (20 cm) in height from the tip of the dorsal fin to the tip of the anal fin. There are some reported anomalies of wild specimens reaching up to 19.6 inches (50 cm) in height and some aquarium specimens said to reach over 15.75 inches (40 cm) in height.The body is laterally compressed with a distinctive diamond shape and steep forehead with a a "notch" on the upper part of its snout, just above the nares, and a steeply rising forehead. They have oversized extended dorsal and anal fins which, along with the tail fin, tend to be very long and flowing. In mature fish the tail fin can develop streamers on the outside corners. The Pelvic (ventral) fins are also very long and delicate. They can have a lifespan of 10 -15 years when properly cared for in a well maintained aquarium.The body presents a general silver coloration which may be accented with a greenish tint. Three broad dark brownish/redish bars run vertically along the body in addition to some less prounounced and fainter bars. The fins can show red striations and adults may have some red spots and a blue-green cast to the dorsal fin. When aroused they will exhibit a black spot on the gill cover.There are also hybrids being developed by cross breeding the with and called the "Orinoco Altum". These hybrids may or may not show the notched trait of the true species, or may have it to a lesser degree. General Care of Angelfish - Angels Plus
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Photo provided by FlickrAngelfish Care - Breeding,Feeding,Diseases Etc..
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Angelfish forms pair before breeding. They do however not pair up for life. The easiest way of obtaining a pair is to buy an already established pair from a breeder or a fish store. This is however quite expensive and forming your own pair is much cheaper. A recommended way of forming a pair is to buy 4-8 Scalare and place them in the same aquarium, where they can get to know each other and form their own pairs. Choose fish with good external features, that looks strong and that display a healthy appetite. Study the fins and gills extra carefully for signs of illness. It is advisable to buy from an established breeder if you want to produce high quality Angelfish. If you can’t find a Scalare breeder in your area, you can buy your fish online, but make sure to choose a reputable website to ensure high quality fish.The Queen Angelfish is found on the coral reefs of the Western Atlantic Ocean. The Queen Angelfish is usually found alone or sometimes as a pair. These queen angelfish can get quite large, up to 18 inches (45 cm) and are not recommended for the saltwater beginner simply because most folks don't have a large enough tank to keep them in. You would need at least a 200 gallon tank to adequately care for them!