Eight Banded Butterfly
Chaetodon octofasciatus
Saltwater Fish
Species Group: Butterflyfish
Family: Chaetodontidae
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Water parameters
Temp
76-80 F
Temperature
Maintaining a stable and appropriate temperature is critical for the survival of aquatic life.
pH 7.8 - 8.4 potential of HydrogenMeasuring the acidity or alkalinity of water on a 0–14 scale, where 7 is neutral, 7 is alkaline.
NO3 1-20 ppm NitrateWhile less toxic than ammonia, high nitrate levels (above 40–80 ppm) are important to monitor because they can cause fish stress, stunted growth, and harmful algae blooms.
NO2 <0.0001 ppm NitriteIt is a highly toxic, intermediate compound in the nitrogen cycle produced from broken-down ammonia
PO4 0.01 - 0.1 ppm PhosphateIt is essential for plant development but must be managed, as excess levels trigger nuisance algae blooms and inhibit coral calcification.
NH3 <0.1 ppm AmmoniaIt is the primary killer of aquarium fish, causing gill damage, stress, and death
Ca 380 - 450 ppm CalciumSupporting the growth, skeletal structure, and shell formation of corals, mollusks, crustaceans, and coralline algae
KH 8 - 12 dKH AlkalinityIt acts as a shield, neutralizing acids to prevent dangerous pH "crashes" that can harm fish, corals, and plants.
Mg 1200 - 1400 ppm MagnesiumIt enables coral growth by supporting skeletal formation, assists in metabolic processes, and ensures that calcium is available for corals, clams, and coralline algae.
SG 1.023 - 1.026 SG SalinityEssential for maintaining stable, natural water parameters, proper osmoregulation, and stress-free environments for marine fish and corals
ORP 250 - 400 mV Oxidation-Reduction PotentialA higher positive mV indicates clean, oxygen-rich water with high water quality, while low readings indicate high pollution.
About Eight Banded Butterfly
General information
The Eight Banded Butterflyfish (Chaetodon octofasciatus) is a small and colorful species of marine fish belonging to the family Chaetodontidae. It has a distinctive coloration of eight black vertical bands on a white body, with a yellow tail and dorsal fin. The species can reach a maximum size of around 7 inches (18 cm) in the wild and can be kept in aquariums of at least 75 gallons.
Diet & nutrition
In the wild, Eight Banded Butterflyfish feed primarily on a diet of algae and small invertebrates such as crustaceans and mollusks. In captivity, they can be fed a diet of high-quality marine flake or pellet food, supplemented with frozen or live brine shrimp, mysis shrimp, and other small meaty foods.
Determining sex
There is no reliable way to determine the sex of Eight Banded Butterflyfish based on physical characteristics.
Breeding & spawning
Eight Banded Butterflyfish are known to breed in pairs and have been successfully bred in captivity. They spawn during the day and release their eggs into the water column where they drift until they hatch. Raising the fry can be challenging, requiring specific feeding and water conditions.
Diseases
Eight Banded Butterflyfish can be susceptible to common marine fish diseases such as ich and velvet. It is important to quarantine any new additions to an aquarium to prevent the spread of disease.
Origination
The Eight Banded Butterflyfish is found in the Western Atlantic Ocean, from Florida to Brazil, including the Gulf of Mexico and the Caribbean Sea.
Cautions
Eight Banded Butterflyfish are generally peaceful and can be kept with other non-aggressive fish species. However, they may nip at coral and invertebrates, so caution should be taken when adding them to a reef aquarium.
Acclimation process
When introducing Eight Banded Butterflyfish to a new aquarium, it is important to acclimate them slowly to the new water conditions. This can be done by gradually adding small amounts of water from the new aquarium to the bag containing the fish over a period of several hours.
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