Butterfly Fish Care: Tank Setup, Feeding, & Water Quality Guide

This care sheet covers a variety of butterflyfish, including:

• Auriga butterfly
• Heniochus butterfly
• Fourspot butterfly
• Raccoon butterfly
• Longnose butterfly
• Falcula butterfly
• Saddleback butterfly

Typical appearance and behavior

• Butterflyfish are known for the dark band that runs across their eyes, as well as their sharp dorsal spines
• They are typically found swimming in pairs or schools
• Tend to be shy and peaceful, but some can be territorial
• Butterflies usually inhabit the middle and lower part of the tank

Characteristics

Habitat

Habitat size

It is recommended that butterflyfish be kept in a 50-gallon or larger aquarium, depending on the species. A larger aquarium is always encouraged, as water conditions can change rapidly in smaller water volumes.

Building your habitat

• Water health - Provide proper filtration to ensure optimal water quality to help maintain health. Moderate to strong water circulation, based on the species, should be provided to mimic water currents found in the butterflyfish's natural habitat. Stable water quality (pH, ammonia, nitrate, nitrite) and water temperature are critical to the health of aquatic life. If you are unsure of your water quality, bring a sample to Petco for free testing. The addition of a protein skimmer can aid with maintaining great water quality and high dissolved oxygen levels.
• Temperature - An aquatic heater should be used to stabilize water temperature, ensuring it does not fluctuate more than +/-2 degrees in a 24-hour period. The specific gravity should remain stable. Do not allow specific gravity to fluctuate more than +/-0.001 in a 24-hour period
• Décor - Provide rock and décor for hiding places and plenty of room for movement
• Live rock – Live rock can provide a natural food source while also enhancing biological filtration

Feeding

A well-balanced butterflyfish diet consists of:

• Pellets, flakes, freeze-dried, frozen food or live corals
• A varied diet will help to ensure proper nutritional balance

Things to remember when feeding butterflyfish:

• Depending on the species and size, feed small amounts two to three times daily, no more than fish will eat in one to two minutes
• Thaw frozen food before feeding

Butterflyfish care

• Avoid overcrowded conditions, as this is a major cause of stress and disease
• Maintaining great water quality with regular water changes and adequate filtration is important to help keep your butterflyfish healthy
  • Daily: Check filter, water temperature and other equipment
  • Weekly: Test water quality at least once a week
  • Monthly: Change 10 to 25% of the total volume of water every two to four weeks or as needed. Change filter media monthly

Where to buy butterflyfish

Various butterflyfish are available for purchase at Petco online and in store. If visiting your local Petco Pet Care Center location, please call ahead to check availability.

Supplies

• Appropriate size aquarium
• Appropriate food, dry and frozen
• Décor
• Water conditioner
• Filter
• Water test kit
• Full-spectrum lighting
• Net
• Thermometer
• Protein skimmer
• Marine substrate
• Heater
• Refractometer
• Live rock

Habitat mates

• Can be aggressive with other butterflyfish or similar-looking fish
• Avoid coral reef tanks since they like to eat coral
• Compatible with:
  • Dwarf angelfish
  • Anthias
  • Basslets
  • Blennies
  • Cardinalfish
  • Chromis
  • Clownfish
  • Dartfish
  • Foxface/Rabbitfish
  • Gobies
  • Jawfish
• May be compatible with:
  • Large angelfish
  • Damselfish
  • Psuedochromis
  • Tangs
  • Wrasses

Health

Signs of a healthy fish

• Clear eyes
• Healthy appetite
• Bright, even coloring
• Fins completely intact and undamaged
• Free of parasites or disease

Red flags (If you notice any of these signs, contact your local aquatic specialist or veterinarian.)

• Loss of color or appetite
• Spots or fungus on body or mouth
• Erratic swimming
• Labored breathing
• Listlessness
• Weight loss
• Cloudy eyes or pop eye
• Frayed fins

Common health issues

• Angelfish
• Cardinalfish
• Foxface/Rabbitfish

Notes and resources

Ask a Pet Care Center associate about Petco's selection of products available for the care and happiness of your new pet. All products carry a 100% money-back guarantee.

Because all aquatic life are potential carriers of infectious diseases, such as atypical mycobacterium and salmonella, always wash your hands before and after handling your aquatic life and/or habitat contents to help prevent the potential spread of diseases.

Pregnant women, children under the age of 5, senior citizens and people with weakened immune systems should contact their physician before purchasing and/or caring for aquatic life and should consider not having aquatic life as a pet.

Go to the Centers for Disease Control at cdc.gov/healthypets for more information about aquatic life and disease.

The information on this Care Sheet is not a substitute for veterinary care. If you need additional information, please contact your veterinarian as appropriate.