Powder blue tang reef compatibility check
Acanthurus leucosternon
Powder blue tang (Acanthurus leucosternon) is an expert-level tang that needs at least 125 gallons. It is listed as reef safe; high disease and aggression risk. Temperament is aggressive and adults reach about 9 inches. ReefCrafter schedules it as middle-stage livestock, with no tank-age gate beyond a finished cycle.
Avoid for most beginners; this tang magnifies quarantine, space, and stability mistakes.
Who it is for
Good fit for
- ✓ Tanks of 125+ gallons at the animal's adult size.
- ✓ Newly cycled tanks with a compatible stocking list.
- ✓ Reef tanks with corals and invertebrates.
Not a fit for
- ✕ Tanks under 125 gallons, even while it is small.
- ✕ Keepers without experience and a long-stable system.
- ✕ Peaceful community tanks with small, timid fish.
- ✕ High disease and aggression risk.
Compatibility warnings
- High disease and aggression risk.
- Needs large stable oxygen-rich systems.
- Check adult size against the final tank, not the fish or coral at purchase size.
- Add livestock slowly so the bioload and nutrient export can keep up.
- Use the planner when this animal changes the tank-size, flow, lighting, or stocking plan.
Professional planning context
- Use the 125 gallon minimum as an adult-planning floor; display length, aquascape, and existing tankmates can raise that floor.
- This can be planned early after cycling, but only after quarantine/acclimation logistics and stocking order are settled.
- Professionals should model aggression by territory and introduction order, not only by care level.
Tank fit and maturity gate
ReefCrafter uses 125 gallons as the planning floor for adult size, swimming room, nutrient load, and aggression margin.
This species can be planned early when the tank is cycled and the rest of the stocking list is compatible.
Care notes
- Temperament
- Aggressive
- Reef safety
- Safe
- Adult size
- 9 in
- Placement
- Build dependent
- Diet
- Build dependent
- Flow
- Varied
- Light
- None
- Bioload
- 3.4
- Stocking stage
- Middle
Related species
- Blue hippo tang
Same 125-gallon floor, intermediate care.
- Purple tang
100+ gallons, intermediate care.
- Achilles tang
180+ gallons.
- Kole tang
75+ gallons, intermediate care.
Equipment that fits
- Waterbox REEF 220.6 Aquarium System (167 gallons)
167-gallon display, above this animal's 125-gallon floor.
- CADE Pro Reef 1500 Series 2
210-gallon display, above this animal's 125-gallon floor.
- Red Sea Reefer-S 1000 G2+ System (210 Gal)
210-gallon display, above this animal's 125-gallon floor.
Related reading
Questions
What size tank does the powder blue tang need?
ReefCrafter plans for at least 125 gallons, based on an adult size of about 9 inches, plus swimming room, nutrient load, and aggression margin. Use the adult size, not the size at purchase.
Is the powder blue tang reef safe?
It is listed as reef safe in ReefCrafter's catalog. Watch for: High disease and aggression risk; Needs large stable oxygen-rich systems.
Is the powder blue tang good for beginners?
It is rated expert care, so most beginners should add it later, after parameters have been stable.
When should I add the powder blue tang to my tank?
ReefCrafter treats it as middle-stage livestock, with no tank-age gate beyond a finished cycle. Add livestock slowly so nutrient export keeps up.