Convict Tang (7 days for Delivery)
Earns 203 Aqua Points, worth £2.03 off a future order. How points work
- Arrive alive guarantee
- Overnight, oxygen packed
- You pick the day
Livestock delivery, done properly
- Overnight insulated delivery on fish orders, £19.95, and free collection near Gatwick
- Arrive-alive promise plus our Perfect Health Arrival guarantee
- You choose the delivery day at checkout. We only show days we can genuinely deliver
- £35 minimum on livestock orders. Dry goods ship free alongside fish
Marine Fish Perfect Health Promise
All marine fish have a Perfect Health Arrival guarantee. For the following reasons, we cannot guarantee beyond that.
A number of different reasons can affect why a marine fish does not settle into its new environment. These range from:
- Unsuitable water conditions: incorrect pH, high ammonia and nitrite levels.
- Tank bullies: some marine fish are very passive and will not mix well with more boisterous tank mates.
- Incorrect tank size: please research the fish you are buying, as some will become stressed in a tank that is too small.
If you have any problems on arrival
Please contact us straight away and we will extend your guarantee until the fish is healthy again. You must call on the arrival day to activate this.
01293 749046Credit notes
If any of your aquatic life dies during our guarantees and has been acclimatised in a mature aquarium, please take a photo and email it across and we will send you a credit note.
Please email photographs of the deceased specimens to sales@aquaticstoyourdoor.co.uk.
About this fish
Convict Tang (Acanthurus triostegus)
What is its maximum size?
The Convict Tang can grow to approximately 25–27 cm (10–11 inches) in length. It is an active swimming species and requires a large aquarium with plenty of open swimming space, live rock for grazing and good water movement.
Where is its origin and where is it exported from?
The Convict Tang originates from the Indo-Pacific region, with a very wide distribution extending from the East African coast and the Red Sea across to the central Pacific, including Hawaii, Australia, Indonesia and French Polynesia. It is commonly exported for the aquarium trade from countries such as Indonesia, the Philippines and other Pacific island regions.
Is it reef compatible?
Yes, generally reef safe. It is primarily an algae grazer and is usually safe with corals and most invertebrates. It spends much of its day grazing on algae growing on rocks and other aquarium surfaces.
What should I feed it?
Feed a varied diet consisting mainly of marine algae and seaweed, including nori, supplemented with spirulina flakes, algae-based pellets and occasional meaty foods such as mysis shrimp. Regular feeding is important to support its active lifestyle and natural grazing behaviour. Provide multiple feeding opportunities throughout the day where possible.
How many can I keep?
Unlike many other tang species, Convict Tangs can sometimes be kept in groups, particularly when introduced together into a sufficiently large aquarium. In the wild, they are often seen swimming and feeding in schools. However, they still require considerable swimming space, and keeping multiple individuals is only recommended in exceptionally large systems. For most home aquariums, a single specimen is the more practical option.
How compatible is it with other fish?
Generally peaceful compared with many other tang species and suitable for a large community aquarium with compatible marine fish. It can occasionally display territorial behaviour towards other surgeonfish, particularly in smaller aquariums. Avoid keeping it with overly aggressive tankmates or fish that compete heavily for territory. Provide plenty of swimming space and grazing areas.
Water parameters
Temperature: 24–28°C
pH: 8.1–8.4
Specific gravity: 1.023–1.026
Ammonia and nitrite: 0 ppm
Nitrate: Keep as low as practical with stable water quality.
If it does not arrive alive, you do not pay for it.
Photograph the bag unopened, send it to us within four hours of delivery, and we will put it right with a refund or a replacement.* Our guarantee on marine fish covers their health on arrival. If anything concerns you, please ring us on the day they arrive and we will extend it until the fish is healthy again.
*Whether we refund or replace is our decision and depends on the fish and its cost. A replacement may travel with a future order rather than straight away.