Bennetts Butterflyfish
Chaetodon bennetti
Saltwater Fish
Species Group: Butterflyfish
Family: Butterflyfish
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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 Bennetts Butterflyfish
General information
Bennett's Butterflyfish (Chaetodon bennetti) is a small, colorful species that belongs to the family Chaetodontidae. It is native to the western Pacific Ocean, from the Great Barrier Reef to Japan, and is commonly found in coral reefs and lagoons. This species typically reaches a maximum size of about 6 inches (15 cm) in length and has a striking black, white, and yellow coloration, with a black stripe extending from the snout to the dorsal fin.
Diet & nutrition
In the wild, Bennett's Butterflyfish feeds primarily on small invertebrates such as polychaete worms, crustaceans, and small mollusks. In captivity, they can be fed a varied diet consisting of meaty foods such as frozen shrimp, squid, and clams, as well as high-quality prepared fish foods.
Determining sex
There is no external physical difference between male and female Bennett's Butterflyfish, and they cannot be reliably sexed by visual inspection.
Breeding & spawning
Bennett's Butterflyfish have not been successfully bred in captivity, and their breeding behavior in the wild is not well documented.
Diseases
Bennett's Butterflyfish are generally hardy and not particularly prone to disease. However, they may be susceptible to common saltwater fish diseases such as ich, marine velvet, and bacterial infections. Quarantining new specimens before introducing them to an established aquarium can help prevent the spread of disease.
Origination
Bennett's Butterflyfish is native to the western Pacific Ocean, from the Great Barrier Reef to Japan.
Cautions
Bennett's Butterflyfish is generally peaceful and can be kept with other non-aggressive fish species in a reef or fish-only aquarium. However, they may become territorial towards other butterflyfish species or similarly shaped fish. They may also nip at the polyps of stony corals, so caution should be exercised when keeping them in a reef aquarium.
Acclimation process
When introducing Bennett's Butterflyfish to a new aquarium, it is important to properly acclimate them to their new environment. The drip acclimation method is recommended, gradually adding small amounts of water from the new aquarium to the water in which the fish was transported, until the water parameters are equal.
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