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Twospined angelfish

Twospined angelfish

Origin

🇮🇩

Indonesia

Habitat Size

50-150 Liters

Water Type

Salt Water

Water Temperature

24º-27ºC

Cost in India

₹80 - ₹150

Size

2 - 6 inches (Small)

Diet

Omnivore

Blue and orange twospined angelfish swimming among coral
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by Happy Pet TeamUpdated on 2 Dec 2025

Twospined Angelfish (Centropyge bispinosus) is a small, colorful saltwater fish that is highly sought after for its indigo blue body and yellow tail and spines for identification. Its small size and bright colors make it a popular choice to inhabit a saltwater aquarium.

They are slightly bigger and more colorful than the female, with less pronounced and smaller markings on the female. Twospined Angelfish are moderately aggressive, curious, and very interactive with the environment, being visually appealing to reef or marine community aquariums.

Origin of the Twospined Angelfish

It occurs in the western Pacific Ocean, offshore of Japan, Taiwan, and the Philippines. They inhabit coral reefs and rocky crevices in the wild and where they are sheltered by many hiding places. They feed on algae, small invertebrates, and detritus, which naturally sustains reef systems. They are aquacultured and are increasingly available to aquarists.

Temperament of the Twospined Angelfish

Twospined Angelfish are half peaceful and half territorial and will get along with other peaceful marine animals but will defend their territory fiercely, particularly in smaller tanks. Because they are so curious, they are active fish who swim into every nook and corner of the tank to explore and play with ornaments, rocks, and coral.

Twospined Angelfish Compatibility with Other Fish

Twospined Angelfish can be housed with other semi-aggressive or strongerfish, but carefully. Suitable tankmates include:

  1. Clownfish, gobies, and wrasses
  2. Twospined angelfish of the same temperament
  3. Blennies and tangs

Avoid housing them with extremely small, delicate fish, or bottom-dwellers which lack the capacity to compete for space. There being plentiful amounts of hideaways and visual cover territorial fights are minimized.

Twospined Angelfish Price Range

Twospined Angelfish are relatively inexpensive for a saltwater fish. They range in price from ₹2,500 to ₹5,000 (US $30–65) depending upon size, color, and origin. As they are reef-safe and well-colored marked, hobbyists love them, making them one of the most sought-after saltwater aquarium fish.

Characteristics

Temperament

Aggressive

Friendly

Compatibility with other fishes

Not Friendly

Super Friendly

Habitat Size

Small

Large

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Habitat Requirements of the Twospined Angelfish

Initial Setup Cost

₹4,000 - ₹12,000

Water Temperature

24º -27ºC

Water Type

Salt Water

PH Level

8.1 - 8.4

Tank Setup

  1. Minimum tank capacity: 50 gallons per fish
  2. Ideal: 75 gallons or more for multiple species and reef tanks
  3. Features: plenty of live rock, crevices, and open swimming space

Water Conditions

  1. Temperature: 24–27°C (75–81°F)
  2. pH level: 8.1–8.4
  3. Salinity: 1.020–1.025 specific gravity
  4. Hardness: 8–12 dKH

Environmental Needs

  1. Substrate: crushed coral or sand
  2. Ornaments: live rock for grazing, hiding, and territorial marking
  3. Plants: macroalgae can be added for grazing
  4. Lighting: reef-standard lighting adequate for coral-safe aquarium

Essential Equipment

Aquarium tank

Water filter

Heater

Light

Substrate

Nutritional Care of the Twospined Angelfish

Avg Monthly Expenses

₹80 - ₹ 150

Twospined Angelfish are omnivores and require a variety of food to thrive. The proper food is:

  1. Staple: high-quality marine pellets and flakes
  2. Protein: live or frozen food in the shape of brine shrimp, mysis shrimp, and crushed seafood
  3. Vegetables: blanched seaweed or sheets of marine algae

Feeding tips:

  1. Feed 2–3 times daily, in small quantities
  2. Alternate diet to promote coloration and general health
  3. Scrape out surplus food to promote cleanliness of water
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Health & Care of the Twospined Angelfish

Common Health Issues

Fin rot

White spot / ick

Velvet disease (yellowish-brown spots on the skin)

Bacterial infections

Parasitic infections

Gill disease

Signs of good health

Active

Bright coloration

Good apetite

Signs of sickness

Loss of appetite

Lethargic behaviour

Dull coloring

Tattered fins

Swimming abnormally

Common Issues of the Twospined Angelfish

Marine Ich (Cryptocaryon)

A saltwater parasite that appears as white spots or lesions.

  1. Symptom: White patches on body or fins, scratching against rocks.
  2. Cure: Treat with marine-specific anti-parasitic medication and maintain stable salinity.

Fin Damage from Aggression or Poor Water Quality

Caused by bullying tank mates or subpar conditions.

  1. Symptom: Clamped, torn, or ragged fins.
  2. Cure: Improve water quality and separate aggressive species if needed.

Stress-Related Illness

Stress lowers immunity and leads to secondary infections.

  1. Symptom: Lethargy, loss of appetite, fading color.
  2. Cure: Provide hiding places, live rock, and reduce environmental stress.

Prerequisites for a Fish

Adequate tank space

Cleanliness

Effort & commitment

Enriching Environment

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Written by

Happy Pet Team

Author

Team Happy Pet is a passionate collective of pet experts, enthusiasts, and advocates dedicated to sharing trusted and insightful content.

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Frequently Asked Questions

What do Twospined Angelfish eat?

They are omnivores and need a varied diet of marine algae, sponges, invertebrates, and high-quality prepared foods.

What are common health issues for Twospined Angelfish?

Common health issues include fin rot, ich, velvet disease, bacterial infections, parasitic infections, and gill disease

How to ensure Twospined Angelfish stays healthy?

Maintain stable water conditions, provide a balanced diet, observe for signs of illness, quarantine new fish, and ensure a stress-free environment with proper tank mates and plenty of hiding spots.