Wild Altum Angelfish, scientifically known as Pterophyllum altum, are highly sought-after and prized angelfish species in the aquarium hobby. They are native to the Amazon River Basin in South America and are known for their elegant appearance and unique characteristics. Here are some key details about Wild Altum Angelfish:

Appearance:

• Graceful Body Shape: Wild Altum Angelfish have a tall and elongated body shape with long dorsal and anal fins. Their overall appearance is more slender and elongated compared to the common domesticated angelfish.
• High Fin and Crown: One of the distinctive features of Wild Altum Angelfish is their high dorsal and anal fins, which extend prominently. They also have a noticeable crown on their head, giving them an impressive and regal appearance.
• Silver Base Color: Wild Altum Angelfish typically have a silver or gray base color with vertical black stripes running along their body. The fins may have a tint of yellow or red, especially during breeding or when displaying dominance.

Size and Growth:

• Large Size: Wild Altum Angelfish can grow much larger compared to the domesticated angelfish varieties. They can reach sizes up to 15-20 centimeters (6-8 inches) in height when fully mature.
• Slow Growth Rate: Wild Altum Angelfish have a relatively slower growth rate compared to other angelfish species. It may take them several years to reach their full size and potential.

Temperament and Behavior:

• Peaceful Nature: Wild Altum Angelfish are generally peaceful in nature. However, they can exhibit territorial behavior, especially during breeding or when establishing their hierarchy within a group.
• Shoaling Fish: In the wild, Wild Altum Angelfish are known to form shoals or groups, swimming together in search of food and safety. Keeping them in groups of at least five or more individuals is recommended to promote their natural behavior and minimize stress.

Water Conditions:

• Soft and Acidic Water: Wild Altum Angelfish prefer soft and slightly acidic water conditions. Ideally, maintain a pH level between 6.0 and 7.0 and a water hardness of 1-5 dH. Good filtration and regular water changes are essential to maintain water quality.
• Temperature Range: Provide a temperature range between 26°C and 30°C (79°F to 86°F), replicating their natural habitat in the Amazon River Basin.

Tank Setup:

• Large Tank Size: Due to their tall body shape and potential size, Wild Altum Angelfish require a spacious aquarium. A tank size of at least 100 gallons or more is recommended to accommodate their growth and provide ample swimming space.
• Aquascape: Create a natural environment with plenty of hiding spots, driftwood, and live plants. These elements help simulate their native habitat and provide cover for the fish. Floating plants can also help diffuse lighting and create shaded areas.
• Water Flow: Wild Altum Angelfish prefer gentle water flow in the aquarium. Avoid strong currents that may stress or impede their swimming abilities.

Feeding:

• Varied Diet: Wild Altum Angelfish are omnivorous and accept a wide range of food. Offer them a balanced diet consisting of high-quality pellets, flakes, frozen or live foods such as bloodworms, brine shrimp, and small insects. Include vegetable matter in their diet as well, such as spirulina-based foods or blanched vegetables.

Care:

• Regular Observation: Keep a close eye on the behavior, health, and feeding habits of your Wild Altum Angelfish. Look out for any signs of stress, disease, or nutritional deficiencies.
• Water Quality Maintenance: Maintain excellent water quality by performing regular water changes, testing water parameters, and monitoring ammonia, nitrite, and nitrate levels.

It's worth noting that Wild Altum Angelfish can be more challenging to keep compared to domesticated angelfish due to their specific requirements and sensitivity. Proper research and understanding of their needs are crucial to providing them with a suitable and thriving environment.