The Peppermint Angelfish (Paracentropyge boylei) is the rarest angelfish in the world. Found at extreme depths in the Pacific, its scarcity and the high risk of deep-sea collection make it a legendary prize for elite collectors. Every aquarium hobbyist dreams of that one “holy grail” fish that defines their collection. In my ten years of…
The primary difference is species: the “Egyptian” Altum is the true Pterophyllum altum from the Orinoco, while the Peruvian Altum is a Pterophyllum scalare variant from the Rio Nanay that mimics the Altum’s look. If you have ever walked into a high-end fish store and seen a tank of towering, majestic angelfish, you have likely…
To identify a true altum angelfish (Pterophyllum altum), look for a distinct supraorbital notch above the snout, exceptionally tall vertical fins, and a dorsal ray count between 27 and 30, typical of the Orinoco basin. The Pterophyllum altum, commonly known as the Orinoco Altum, is often considered the “holy grail” of the freshwater aquarium hobby….
Yes, the Altum Angelfish is significantly harder to keep than common angelfish species. They require exceptionally soft, acidic water, precise temperature control, and a high level of expertise to prevent stress and disease. If you have spent any time in the aquarium hobby, you have likely marveled at the sheer elegance of the Pterophyllum altum….
Altum angelfish require soft, acidic water with a pH of 4.5 to 6.2, temperatures between 82°F and 86°F, and very low specific conductance. Maintaining pristine water quality with zero nitrogenous waste is vital for their survival. Keeping the majestic Pterophyllum altum is often considered the “pinnacle” of the freshwater hobby. Unlike their more common cousins,…
Altum angelfish can reach a body length of 7 to 8 inches, but their vertical fin span is their most impressive feature, often stretching between 12 and 15 inches in height. They require tall aquariums to accommodate this size. When you first see a true Pterophyllum altum in a well-established aquarium, the experience is nothing…
A Peruvian Altum angelfish is a naturally occurring variant of Pterophyllum scalare native to the Rio Nanay in Peru. They are famous for their tall, majestic profiles and distinctive “notched” snouts, mimicking the appearance of true Altums. If you have spent any time in the world of high-end freshwater aquaria, you have likely heard whispers…
The primary difference is that Altum angelfish are significantly larger with a distinct notched snout, while Scalare angelfish are smaller, more common, and much easier for hobbyists to keep and breed in home aquariums. For many of us, the angelfish is the ultimate centerpiece of a freshwater aquarium. I still remember the first time I…
The different types of freshwater angelfish include three wild species—Pterophyllum scalare, Pterophyllum altum, and Pterophyllum leopoldi—along with numerous captive-bred color and fin variations such as Marble, Koi, Zebra, and Veiltail angelfish. When you walk into a local fish store, the first thing that usually catches your eye is the graceful silhouette of an angelfish. These…
Yes, certain peaceful South American cichlids can live with angelfish. Success depends on choosing species with similar temperaments and water requirements while avoiding aggressive African cichlids or large, predatory Central American varieties. One of the most common questions I receive from hobbyists looking to add some flair to their tanks is, “can cichlids live with…