🚚 Dry goods ship Australia-wide 🐠 Livestock — buy online, collect in store 🧪 In-store water analysis
Fish

Tomini Tang

Ctenochaetus tominiensis
$140Out of stock
Options · choose one
SKU K481487
Pickup in store onlySold
Buy online and collect at 280 North Road, Eastwood NSW 2122.
Open Mon–Sat 10am–6pm · Sun 1pm–6pm. Usually ready the same day.
Livestock is collection only — we don't ship live coral or fish. Anything else in the same order is ready to grab when you collect.
Currently out of stock — ask us in store about availability.
Out of stock — join the waiting list

Tell us the size and sex you're after and we'll source this fish from our suppliers, then email you the moment it's in.

Join the waiting list →
  • Kept in our system until you collect

About this fishWhat do these mean?

FamilyTang
Max size15 cm
Minimum tank300 L · 79 gal
Care levelBeginner
Reef compatibilityReef safe
DietHerbivore
TemperamentSemi-aggressive
OriginWestern Pacific (Indonesia)

See the full care profile →

Overview

The Tomini Tang is a slender, attractive bristletooth tang with a warm brown body, fine blue pencilling, and a bright yellow tail, making it one of the more visually appealing members of the Ctenochaetus genus. It shares the same detritus and diatom-sifting feeding style as its relatives, making it a genuinely useful clean-up fish as well as an attractive display animal.

It's considered one of the hardier and more forgiving tangs for home aquariums, tolerating a range of tank sizes better than many larger Acanthurus species, and is a common recommendation for a first tang purchase.

Given adequate space and a stable, established tank it's a low-maintenance, long-lived addition to a reef system.

Compatibility

Tomini Tangs can show territorial aggression toward other tangs, particularly similarly shaped species, so care with stocking order matters in tanks with multiple surgeonfish. They're generally peaceful with unrelated community fish.

This species is fully reef safe and won't bother corals, clams, or invertebrates.

Health & quarantine

As a Ctenochaetus species, the Tomini Tang is one of the hardier tangs, though it's still susceptible to marine ich like all surgeonfish, so a minimum four-week quarantine is recommended. Good water flow and a varied algae-rich diet support long-term health and colour.

Frequently asked questions

Is the Tomini Tang a good first tang?
Yes, it's one of the hardier tangs and a common recommendation for keepers new to tangs, alongside other Ctenochaetus species.
Is the Tomini Tang reef safe?
Yes, it's herbivorous and won't bother corals or invertebrates.
How big does a Tomini Tang get?
Around 15cm as an adult, requiring a reasonably sized tank but not as large as bigger Acanthurus species.
What does a Tomini Tang eat in a reef tank?
It naturally sifts detritus and diatoms off rock and sand, supplemented with nori, pellets, and spirulina-based foods.
Can I keep a Tomini Tang with other tangs?
With care — avoid other similarly shaped tangs in a smaller system to reduce territorial conflict.
Marine aquarium parametersOur recommended stable range for marine fish
Temp
24–26°C
Salinity
1.020–1.025
pH
8.1–8.4
Ammonia
0 ppm
Nitrite
0 ppm
Nitrate
< 40 ppm
Stability matters more than chasing perfect numbers. Quarantine new fish before adding them.

How collection works

1

Order & pay online

Check out and pay securely. We set it aside and hold it ready for you.

2

We get it ready

It stays in our system until you come in — usually ready the same day.

3

Collect in store

Drop in to 280 North Road, Eastwood, and pick it up.

You might also like

View all marine fish