How big does Bicolor Angelfish get?

Bicolor Angelfish reaches an adult standard length of 9–12 cm (excluding the caudal fin). Size the tank for that, not for the juvenile you bring home — the difference is often several times over, and upgrading later costs more than buying once.

What water does Bicolor Angelfish need?

24–27 °C, pH 8.1–8.4, 7–12 dGH, 7–9 dKH, specific gravity 1.023–1.026. That is only 3 °C wide, so stability matters more than hitting a particular number.

What is the smallest tank for Bicolor Angelfish?

At least 150 L, and no shorter than 90 cm. That is the floor for long-term keeping, not for short-term survival: volume buys water stability and length buys swimming room, and neither substitutes for the other. It is not a schooling fish, so a single specimen or a pair is fine.

What is Bicolor Angelfish like to keep?

Temperament: semi-aggressive. Difficulty: advanced. It occupies the middle and is omnivore. Reef safety is "Use caution".

Can Bicolor Angelfish be kept with its most common tank mate?

The checker returns "Not recommended together". Bicolor Angelfish and Flame Angelfish is a recorded conflict in this atlas. Predation, territorial fighting or conspecific aggression is the usual outcome, and a bigger tank does not change it.

G-01 / 56Marine

Bicolor Angelfish双色神仙

Centropyge bicolor · Pomacanthidae

Yellow front, blue rear; striking, but notoriously hard to get feeding.

Illustration to come

G-01 / 56 · Bicolor Angelfish Centropyge bicolor

SpecificationsFish atlas

Name: 双色神仙
Scientific name: Centropyge bicolor
Family: Pomacanthidae
Origin: Indo-Pacific coral reefs
Adult size: 9–12 cm
Temperament: Semi-aggressive
Diet: Omnivore
Water level: Middle
Level: Advanced
Min. tank: 150 L
Min. length: 90 cm
Reef safe: Use caution

Water requirementsMarine

Temp.24–27 °C

pH8.1–8.4

Salinity1.023–1.026 SG

Alkalinity7–9 dKH

Units: temperature in °C, hardness in German degrees (dGH / dKH), marine salinity as specific gravity at 25 °C, volume in litres. These are the values recorded for the species and do not follow the site unit switcher.

Keeping notes

1Refusing food is the main killer; quarantine with several live-food options.
2Nips soft corals and LPS; riskier than most dwarf angels in a reef tank.
3Sensitive to parameter shifts; match quarantine water to the display.
4Fights with its own kind and close relatives; one per tank.
5Live-rock microalgae and sponges bridge it onto prepared foods.

Check a tank mate

Jump straight to the verdict for Bicolor Angelfish against this one — no need to pick it again.

Frequently asked questions

How big does Bicolor Angelfish get?: Bicolor Angelfish reaches an adult standard length of 9–12 cm (excluding the caudal fin). Size the tank for that, not for the juvenile you bring home — the difference is often several times over, and upgrading later costs more than buying once.
What water does Bicolor Angelfish need?: 24–27 °C, pH 8.1–8.4, 7–12 dGH, 7–9 dKH, specific gravity 1.023–1.026. That is only 3 °C wide, so stability matters more than hitting a particular number.
What is the smallest tank for Bicolor Angelfish?: At least 150 L, and no shorter than 90 cm. That is the floor for long-term keeping, not for short-term survival: volume buys water stability and length buys swimming room, and neither substitutes for the other. It is not a schooling fish, so a single specimen or a pair is fine.
What is Bicolor Angelfish like to keep?: Temperament: semi-aggressive. Difficulty: advanced. It occupies the middle and is omnivore. Reef safety is "Use caution".
Can Bicolor Angelfish be kept with its most common tank mate?: The checker returns "Not recommended together". Bicolor Angelfish and Flame Angelfish is a recorded conflict in this atlas. Predation, territorial fighting or conspecific aggression is the usual outcome, and a bigger tank does not change it.