polylepis) are members of the
family Chaetodontidae. This family
consists of over 120 species in 10 genera. Pyramids make their home in
Central Pacific and eastern Indian Oceans.
Their habitat ranges form the Great Barrier Reef north
east to Hawaii. Large shoals of
this species congregate around outer reef areas near oceanic drops-offs
depths from 10 to 200.
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fish. They can reach an adult length of up to 7
inches. They are narrow in width with a roughly triangularly shaped
This fish’s name derives from the white pyramid that begins
on the underbellies
on both side of their bodies and terminates just below their dorsal
have a white and yellow color palette with white caudal fins. Juveniles
yellow heads. As the fish mature this yellow will darken to a brown or
purplish brown in color. Pyramid
frequently sold by retailers
name Yellow Zoster Butterfly.
to be hard to maintain. They are notoriously
unsuitable for marine reef tanks. The pyramid falls into neither of
categories. Pyramids have a moderate
rather than difficult care level
considered reef safe provided they have
an adequate food supply. This
superbly adaptable species. These fish will acclimate quickly to their
surroundings and will thrive under a variety of conditions. This is not
quarrelsome species. They lack the innate aggression present in many
but are assertive enough to be housed with semi-aggressive tank mates.
not prone to hunger strikes when first introduced to a new aquarium and
readily accept common variety fish foods. Pyramids have been reported
up to 12 years in captivity.
This is a
and should not be kept as a solitary specimen. A
group of no less than four is recommended. They will not squabble
themselves or with other members of the community if they are housed in
spacious surroundings with adequate hiding places. A 100 gallon or
will provide them with the room they need to feel at home.
omnivorous. In their natural habitat they are
primarily planktonic feeders. The water columns they derive their
from in the wild are comprised of miniscule and microscopic
plants, algae, archaea and bacteria.
not finicky eaters. They will eat flake food and
pellets. As with any marine specimen a varied diet will maintain
health, color and vigor. Frozen and freeze dried food preparations that
a good percentage of algae are adequate supplements. Vitamin enriched
mysis shrimp should also be on the menu. Dried algae sheets will help
these fish do not suffer from nutritional deficiencies. Pyramids should
2-3 times daily. An adequate supply of well established living rock
them with healthy snack food between feedings. An underfed pyramid may
to nibbling on Xenia
and other soft