Altum Angelfish Pterophyllum altum
Pterophyllum altum
Origin: Orinoco, Venezuela
Water Parameters
Quick Stats
- Max Size
- 40 cm
- Min Tank
- 300 L
- Lifespan
- 12
- Swimming Level
- middle
- Schooling
- No
- Diet
- carnivore
- Temperament
- Mostly peaceful; territorial during spawning.
About
Pterophyllum altum — the altum or Orinoco angelfish — is the tallest of the three angelfish species with an incredibly deep, laterally compressed body and long, flowing fins. It is significantly more demanding than P. scalare, requiring very soft, acidic water (pH 4.8–6.2) and stable conditions. Wild-caught specimens from the Orinoco and upper Rio Negro are available but challenging. An awe-inspiring display fish for expert biotope aquarists.
Care Guide
ADVANCED. pH 4.8–6.2. Very soft water (0–4 dGH). 300+ L tall tank (60+ cm height). Groups of 6+. Feed: live artemia, bloodworm, frozen mysis. Requires blackwater conditions.
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