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Raccoon Butterfly

Raccoon Butterfly

Origin

Indo-Pacific

Habitat Size

150-400 Liters

Water Type

Salt Water

Water Temperature

24º-28ºC

Cost in India

₹200 - ₹300

Size

7 - 8 inches (Medium)

Diet

Omnivore

A yellow Raccoon Butterflyfish with a dark saddle resting on a coral reef
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by Happy Pet TeamUpdated on 1 Dec 2025

The Raccoon Butterfly fish (Chaetodon lunula) is a bright, round fish with a black “mask” across its eyes — that’s why people call it “raccoon.” It is yellow to brown with thin lines on its body and a bold dark patch near the tail. Many people like this fish because it is pretty, easy to notice on reefs, and can learn to eat prepared foods in aquariums.

Raccoon Butterfly fish Origin

  1. These fish live across the Indo-Pacific — from East Africa and the Indian Ocean to Hawaii, Japan, and parts of Australia.
  2. In the wild, they live on shallow reef flats and seaward reefs, often in pairs or small groups.

Temperament

  1. Raccoon Butterflyfish are mostly peaceful but can show some bossy behavior.
  2. They like to swim a lot and sometimes chase smaller fish or nip at invertebrates.
  3. They often pair up or form small groups.
  4. In a tank, they may be shy at first, but can become bold once settled.

Compatibility

  1. Good tankmates: peaceful, medium-sized reef fish that are not tiny or slow (e.g., tangs, wrasses, some gobies).
  2. Avoid: small shrimp, delicate corals, clams, and very small fish that could be picked on or eaten. Also, be cautious with similar butterflyfish — two similar species may fight unless added together.

Raccoon Butterfly Price Range

In India, Raccoon Butterfly typical retail prices can be around ₹1,500–₹3,000 depending on size and availability.

Characteristics

Temperament

Aggressive

Friendly

Compatibility with other fishes

Not Friendly

Super Friendly

Habitat Size

Small

Large

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Raccoon Butterfly Fish Habitat Requirements

Initial Setup Cost

₹10,000 - ₹30,000

Water Temperature

24º -28ºC

Water Type

Salt Water

PH Level

8.1 - 8.4

Raccoon Butterfly Tank Type

  1. Saltwater (marine) aquarium only. Do not keep in freshwater or brackish tanks.
  2. Best kept in a well-cycled, stable marine system.

Aquarium Size

  1. 400 liters (about 100+ gallons) for one adult. They need room to swim. Smaller tanks stress them and make care harder.

Water Conditions

  1. Temperature: 23–27 °C (75–82 °F)
  2. pH: 8.1–8.4
  3. Specific gravity (salinity): 1.020–1.026
  4. Hardness/alkalinity: typical marine reef levels (follow local test kit guidance)

Environment Needs

  1. Plenty of live rock for grazing, hiding, and exploring.
  2. Open swimming space plus caves or crevices for retreat.
  3. Moderate lighting — normal reef lighting is fine.
  4. Strong filtration and steady water quality are very important.

Essential Equipment

Aquarium tank

Water filter

Heater

Light

Substrate

Decor

Raccoon Butterfly Fish Nutritional Guide

Avg Monthly Expenses

₹200 - ₹ 300

Raccoon Butterfly Diet Type

  1. Omnivore leaning toward algae, along with animal foods. It eats tubeworms as well as algae in the wild. Also, it does consume the small invertebrates as well as sea urchin morsels.

Suitable Foods

  1. Frozen mysis and brine shrimp (as treats)
  2. Marine meaty mixes (small crustaceans)
  3. Seaweed/nori and spirulina for algae needs
  4. High-quality marine pellets and flakes that contain spirulina or marine algae
  5. Some specimens accept prepared foods faster than others — a varied diet is best.

Feeding Frequency & Tips

  1. Feed small amounts 2–3 times per day. New or picky fish may need 3–4 small feedings.
  2. Offer both meat and algae foods to cover its needs.
  3. Appetite should be monitored with care. One can offer fresh seafood or live zooplankton to promote eating if it refuses food.
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Raccoon Butterfly Fish Health & Care

Common Health Issues

Velvet disease (yellowish-brown spots on the skin)

White spot / ick

Fin rot

Parasitic infections

Fungal infections

Bacterial infections

Signs of good health

Active

Bright coloration

Good apetite

Signs of sickness

Loss of appetite

Lethargic behaviour

Dull coloring

Swimming abnormally

White growths

Common Health Issues

  1. Stress from poor water quality (leading to ich or other parasites)
  2. Nutritional deficiency if the diet is not varied
  3. Nipping or injury from aggressive tankmates

Symptoms to Watch

These signs can show sickness.

  1. Loss of color or spots
  2. Lack of appetite
  3. Hiding a lot
  4. Rapid breathing
  5. Frayed fins

Treatment

  1. Quarantine new fish before you are adding them to the main tank for some weeks.
  2. Maintain stable, clean water.
  3. For the treatment of parasites, use a saltwater hospital tank.
  4. For medication, follow guides under a trusted hobbyist or aquarium vet.

Raccoon Butterfly Fish General Health Tips

  1. Regular water tests and partial water changes
  2. Provide a varied diet and proper tank mates
  3. Temperature shifts plus any sudden lighting must be avoided
  4. Observers may catch problems in an early stage if they watch on a regular basis.

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 Raccoon Butterflyfish eat?

They primarily feed on coral polyps, small invertebrates, and algae. In captivity, they can be fed a diet of varied marine foods including frozen shrimp, mysis shrimp, and other meaty preparations.

What are common health issues for Raccoon Butterflyfish?

White spot, velvet disease, bacterial infections, among others.

Are Raccoon Butterflyfish easy to care for in aquariums?

They require a well-established aquarium with plenty of live rock and hiding spots. Water quality should be excellent, and they need a diet that mimics their natural feeding habits. They can be sensitive to poor water conditions and should be housed with peaceful tankmates.