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F1 Altum Angelfish on TF2YD
01 October 2020
Angelfish are among the most popular of all aquarium fishes. They are available in countless varieties. Their attractive colours, generally peaceful natures and very unusual shape make them showpiece fish either in a community tank or on their own. A surprise to many newcomers to the hobby is that angelfish are cichlids, and therefore closely related to things like oscars and mbuna.
Angelfish are native to South America, where they are found in both ‘blackwater’ and ‘whitewater’ habitats. A blackwater river like the Rio Negro contains very soft, acidic water than is transparent but tea-coloured stained by all the decaying plant matter in it. A whitewater river, like the River Amazon, may be soft or moderately hard, and the water tends to be less acidic than that in a blackwater river. As the name suggests, the water is usually cloudy, usually the colour of milky coffee, thanks to a heavy load of silt.
Because angelfish occur in both types of water, though not so much in the really acidic waters favoured by discus, they do have a certain level of adaptability. Over time, aquarists have taken advantage of this trait to breed angelfish that do well in the hard, alkaline water many aquarists enjoy. In fact, compared with their wild ancestors, the domesticated varieties of angelfish can be considered essentially hardy fish.
Pterophyllum altum are much larger and deeper than the standard angelfish, most examples of this species are wild caught though some are tank bred. They are generally much more sought after than the standard angelfish. This species needs a similar level of care as discus.