Longspined porcupinefish
Diodon holocanthus
Diodontidae
Diodon holocanthus
Diodontidae
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Lives wild in Australia, Bahamas, Brazil, British Virgin Islands, Canada, Cape Verde, Cayman Islands, Chile, and 45 more countries.
Inhabit shallow reefs to open, soft bottoms. Also in areas with rocky substrata. Sometimes form groups. Occur on open muddy substrates as well as on rich soft-bottom and coral reefs. Juveniles often with floating Sargassum rafts. Young and sub-adults may form small groups. Benthopelagic. Juveniles pelagic to about 6-9 cm. Solitary. Feed on mollusks, sea urchins, hermit crabs, and crabs at night. Relatively poor swimmers. Used in Chinese medicine. Captured at the surface using a hand net.
Temperament, fin nippers, fish that eat other fish, and fish that need the same water. And what the Harmony mark in the app means.
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.