Product Description
The term "Powder Black Tang" often refers to Acanthurus nigricans (Powder Blue Tang) or sometimes Acanthurus leucosternon (Powder Blue Surgeonfish), known for their vibrant blue bodies with black heads and yellow accents, needing large tanks with live rock, abundant algae, and peaceful tank mates; they are herbivorous grazers but require careful tank setup to manage their territorial nature and need for constant algae, with proper water quality crucial to prevent stress-related diseases like marine white spot.
Key Characteristics:
Appearance: Blue body, black head, yellow markings on fins/tail base; small, beak-like mouth for grazing.
Size: Can reach around 9 inches (23 cm).
Behavior: Generally peaceful but territorial; needs space; uses sharp "scalpel" spine near tail for defense.
Care in an Aquarium:
Tank Size: Minimum 70-125 gallons, larger is better to reduce aggression.
Habitat: Plenty of live rock for grazing and hiding.
Diet: Primarily herbivorous; offer dried seaweed (nori) on a clip or rock, supplement with meaty foods.
Tank Mates: Peaceful with most fish, but avoid aggressive species or other tangs unless in very large systems; monitor interactions closely.
Water Quality: Maintain pristine conditions (temp 72-78°F, pH 8.1-8.4) to prevent stress and ich.
Important Considerations:
Algae Control: Excellent algae eaters but can consume desirable plants; also prone to stress-induced marine white spot (ich).
Identification: "Powder Black" can be confused with other tangs like the true Black Tang (Zebrasoma rostratum) or Powder Brown Tang (Acanthurus nigricans), so confirm the scientific name.
