Blue hippo tang reef compatibility check
Paracanthurus hepatus
Blue hippo tang (Paracanthurus hepatus) is an intermediate-level tang that needs at least 125 gallons. It is listed as reef safe; outgrows common starter tanks. Temperament is semi aggressive and adults reach about 12 inches. ReefCrafter schedules it as late-stage livestock, with no tank-age gate beyond a finished cycle.
Popular but commonly under-housed; treat as a large-system fish.
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 some reef experience and stable parameters.
- ✕ Peaceful community tanks with small, timid fish.
- ✕ Outgrows common starter tanks.
Compatibility warnings
- Outgrows common starter tanks.
- Needs excellent oxygenation and swimming room.
- Use 125 gallons as the planning floor.
- High oxygenation and open swimming room matter as much as nominal gallons.
- Do not treat juvenile size as permission for a small long-term tank.
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
- Semi Aggressive
- Reef safety
- Safe
- Adult size
- 12 in
- Placement
- large open swimming lanes
- Diet
- Vegetable matter, nori, and varied meaty foods.
- Flow
- Varied
- Light
- None
- Bioload
- 4
- Stocking stage
- Late
Related species
- Powder blue tang
Same 125-gallon floor, expert care.
- Purple tang
100+ gallons.
- Achilles tang
180+ gallons, expert care.
- Kole tang
75+ gallons.
Equipment that fits
- Waterbox REEF 180.5 Aquarium System (130 gallons)
130-gallon display, above this animal's 125-gallon floor.
- Red Sea Reefer Deluxe XXL 625 G2+ System (132 Gal) w/ 2x ReefLED 160
132-gallon display, above this animal's 125-gallon floor.
- Waterbox INFINIA Peninsula 6025 Aquarium System (137 gallons)
137-gallon display, above this animal's 125-gallon floor.
Related reading
Questions
What size tank does the blue hippo tang need?
ReefCrafter plans for at least 125 gallons, based on an adult size of about 12 inches, plus swimming room, nutrient load, and aggression margin. Use the adult size, not the size at purchase.
Is the blue hippo tang reef safe?
It is listed as reef safe in ReefCrafter's catalog. Watch for: Outgrows common starter tanks; Needs excellent oxygenation and swimming room.
Is the blue hippo tang good for beginners?
It is rated intermediate care, so most beginners should add it later, after parameters have been stable.
When should I add the blue hippo tang to my tank?
ReefCrafter treats it as late-stage livestock, with no tank-age gate beyond a finished cycle. Add livestock slowly so nutrient export keeps up.