Whitecheek surgeonfish
The whitecheek surgeonfish is a marine tang in the family Acanthuridae, widespread across coral reefs of the Indo-Pacific and eastern Pacific. It has a deep, oval body that is mostly dark blue-black, set off by a bright white patch below the eye, a yellow band along the dorsal fin base, and yellow accents on the tail. Like other surgeonfish, it carries a sharp, scalpel-like spine near the tail base used in defense. It grazes algae from rock and reef surfaces throughout the day. It requires a large marine aquarium with abundant live rock for grazing and plenty of open swimming room. Diet should emphasize marine algae and vegetable matter supplemented with meaty foods. It can be territorial toward other tangs, so tankmates must be chosen carefully. Good water quality and space make it a fish for intermediate to experienced keepers.
Water parameters
| Temperature | 24 – 27 °C |
|---|---|
| pH | 8.1 – 8.4 |
| Carbonate hardness (KH) | 8 – 12 °dKH |
| Salinity | 33 – 35 SG |
Tank & stocking
| Minimum tank volume | 550 L |
|---|---|
| Volume budget per individual | 180 L — territorial: does not simply add up |
“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.
Frequently asked questions
What size aquarium does Whitecheek surgeonfish need?
Provide at least 550 litres to keep Whitecheek surgeonfish in good conditions.
What water parameters does Whitecheek surgeonfish need?
A temperature of 24–27 °C, pH 8.1–8.4, saltwater.
Is Whitecheek surgeonfish peaceful or aggressive?
Its temperament is semi-aggressive.
What does Whitecheek surgeonfish eat?
Its diet: herbivore.
How big does Whitecheek surgeonfish get?
Around 21 cm as an adult.
Is Whitecheek surgeonfish suitable for beginners?
Care level: intermediate.
Planning a tank with Whitecheek surgeonfish?
AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.
Fish from the same biotope
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