
Mailed butterflyfish
Chaetodon reticulatus
Chaetodontidae

Chaetodon reticulatus
Chaetodontidae
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Lives wild in American Samoa, Australia, Cook Islands, Fiji, France, French Polynesia, Guam, Indonesia, and 15 more countries.
Relatively common on exposed seaward reefs; occasionally on shallow lagoon reefs in areas of rich coral growth and clear water. Juveniles in protected coral areas. Benthopelagic. In pairs in Indonesia but schools in some Pacific locations. Often in pairs during breeding and feed mainly on scleractinian coral polyps. Easily approached. Oviparous, monogamous. Minimum depth reported taken from Ref. 128797.
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.
Why new fish should live in a tank of their own for a few weeks before they move in, what you need, and what to look for.
What is different in a saltwater aquarium: salt, refractometer, live rock and corals. An introduction for anyone thinking of giving it a try.