Santa Isabel “Altum” Angelfish (Pterophyllum scalare)


A distinctive regional variant of freshwater Angelfish, the Santa Isabel Redback Angel is also called by the trade name “Santa Isabel Altum” although it is not the true Altum Angel (P. altum) from the Orinoco basin of Colombia and Venezuela. This Angel is named for its collection locality, the upper Rio Negro around the small town of Santa Isabel, Brazil. One of the characteristics that distinguishes this naturally occurring form of angel is its vivid reddish or pink extending from the head to the dorsal fin. In the wild theSanta Isabel Angel is found in warm, acidic, heavily tannin-stained waters close to fallen branches or submerged driftwood piles. In the aquarium, they will do best when kept under similar conditions, ideally in a group of at least 5 fish and with plenty of cover. Like all freshwater angelfish, they are peaceful for a cichlid and will coexist with a wide range of tankmates provided they are not overly aggressive or small enough to become a meal.


Santa Isabel “Altum” Angelfish (Pterophyllum scalare)

Origin: Wild Brazil
Locale: Upper Rio Negro between Santa Isabel and Sao Gabriel do Cachoeira
Diet: Omnivore and predator, will readily accept most frozen and prepared foods
Adult Size: 9″ (height)
Recommended Tank Size: 90 gallons+
Compatibility: Generally peaceful, but should be kept with similarly sized fish

Preferred Water Parameters
pH:                          6.5 – 7.2
Temp:                     77 – 84F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm