Tomini tang reef compatibility check
Ctenochaetus tominiensis
Tomini tang (Ctenochaetus tominiensis) is an intermediate-level tang that needs at least 75 gallons. It is listed as reef safe; still needs tang-level swimming room despite smaller adult size. Temperament is semi aggressive and adults reach about 6 inches. ReefCrafter schedules it as middle-stage livestock, with no tank-age gate beyond a finished cycle.
Smaller tang choice for properly sized mid-large reefs, not nano systems.
Who it is for
Good fit for
- ✓ Tanks of 75+ 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 75 gallons, even while it is small.
- ✕ Keepers without some reef experience and stable parameters.
- ✕ Peaceful community tanks with small, timid fish.
- ✕ Still needs tang-level swimming room despite smaller adult size.
Compatibility warnings
- Still needs tang-level swimming room despite smaller adult size.
- 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 75 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 75 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
- 6 in
- Placement
- Build dependent
- Diet
- Build dependent
- Flow
- Varied
- Light
- None
- Bioload
- 2.3
- Stocking stage
- Middle
Related species
- Kole tang
Same 75-gallon floor.
- Yellow tang
Same 75-gallon floor.
- Purple tang
100+ gallons.
- Blue hippo tang
125+ gallons.
Equipment that fits
- Waterbox MARINE X 110.4 Aquarium System (79 gallons)
79-gallon display, above this animal's 75-gallon floor.
- Red Sea Reefer 425 G2+ System (91 Gal)
91-gallon display, above this animal's 75-gallon floor.
- Red Sea Reefer Peninsula 500 G2+ Aquarium System (109 Gal)
109-gallon display, above this animal's 75-gallon floor.
Related reading
Questions
What size tank does the tomini tang need?
ReefCrafter plans for at least 75 gallons, based on an adult size of about 6 inches, plus swimming room, nutrient load, and aggression margin. Use the adult size, not the size at purchase.
Is the tomini tang reef safe?
It is listed as reef safe in ReefCrafter's catalog. Watch for: Still needs tang-level swimming room despite smaller adult size.
Is the tomini 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 tomini 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.