Scientific
Name: Chelmon rostratus
Family:
Chaetodontidae
Common Names: Copperbanded Butterflyfish
Description:
The Copperbanded Butterflyfish is very easily recognized by the copper colored
vertical bands over a silver body, a black eye spot near its dorsal fin and a
long pointed snout.
Natural Environment:
Comes from reefs in the Pacific and Indian Oceans. Copperbanded
butterflyfish are not
yet propagated in captivity.
Care:
Reef Suitability: The Copperbanded is a very attractive fish and a great addition
to a reef tank. Butterflyfish in general tend to be viewed as potential coral
eaters, but Copperband butterflyfish are generally reef safe. They
will tend to deplete the tank of any small fan worms however. They
are sometimes used in the control of the pest aiptasia anemone. This
is a hit and miss affair. Some specimens will eat them and some do
not. A visitor to the ReefCorner has had success with teaching his
Copperbanded to eat aiptasia by putting chunks of food he like to eat into
the aiptasia. As the Copperbanded went for the food it would also
get a taste of the aiptasia. Eventually it learned to eat them
without this prompt. Seems like a good thing to try if you find
yourself in this position.
Disposition: Very non-aggressive
fish. It can be bullied by more aggressive fish,
so be on the lookout for this when introducing a new fish. Only one should
be kept per tank to prevent fighting.
Feeding:
The Copperbanded will get part of its nutrition from feeding on the small
life forms found on live rock. It is especially fond of small fan
worms. They will also usually take smallish meaty foods such as
frozen brine shrimp or blood worms and sometimes mysid shrimp. Keep in mind that they have very small mouths and will usually not
attempt to eat the larger foods that are offered. Getting them to feed on
a nutritionally balanced diet is often the most difficult part of being
successful with this fish. Stubborn fish may accept live foods or
opened clams. Copperbanded butterflyfish may compete for
food with other live rock foragers such as Mandarins.
Hardiness: The Copperbanded can be a somewhat delicate
fish, but once successfully acclimated, seems to do well. Good nutrition is
key.
Temperature:
Does well within normal reef tank temperature ranges of
75-84°F.
Size: Copperbanded butterflyfish can get up to 8 in., but are usually
found at about 1/2 that size in the home tank. Minimum tank size should be
about 55 gallons to provide for its live rock grazing.

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