Pyramid Butterflyfish
Hemitaurichthys polylepis
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 Pyramid Butterflyfish
General information
The Pyramid Butterflyfish (Hemitaurichthys polylepis) is a beautiful and peaceful species found in the Pacific Ocean. It is a relatively small fish, typically growing to around 5-6 inches in length, making it a good choice for smaller aquariums. This species has a triangular-shaped body with a yellow or gold base color and dark black stripes running vertically down its sides.
Diet & nutrition
In the wild, the Pyramid Butterflyfish feeds on a variety of plankton and small crustaceans. In captivity, it can be fed a varied diet including frozen or live foods such as brine shrimp, krill, mysis shrimp, and plankton. It will also readily accept high-quality flake and pellet foods.
Determining sex
There are no external physical differences between males and females of the Pyramid Butterflyfish species.
Breeding & spawning
Breeding this species in captivity is difficult and rare. They are egg scatterers and do not provide any parental care for their eggs or fry.
Diseases
The Pyramid Butterflyfish is relatively hardy and disease-resistant when maintained in proper conditions. However, they can still be susceptible to common fish diseases such as ich and fin rot. Quarantining new additions to the tank and maintaining good water quality can help prevent disease outbreaks.
Origination
The Pyramid Butterflyfish is found throughout the Pacific Ocean, from Hawaii and the Marshall Islands to Japan and Australia.
Cautions
The Pyramid Butterflyfish is generally a peaceful species and can be kept with other peaceful fish species. However, it should not be housed with aggressive or larger fish that may bully or harass it. It may nip at corals and other invertebrates in the aquarium, so caution should be exercised when keeping it with these types of organisms.
Acclimation process
When introducing a Pyramid Butterflyfish to a new aquarium, it is important to slowly acclimate it to the tank water. This can be done by floating the bag containing the fish in the aquarium for 20-30 minutes to allow the water temperature to equalize. Afterward, small amounts of water from the aquarium should be added to the bag every few minutes until the bag is full. The fish can then be released into the aquarium.
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