Aquarium guide
Aquarium guide     

  
 
Sea urchins
 

Sea urchins

These crawl over the decor to graze on the algae which form their diet. Be careful, because they are highly prized by Balistids, puffers, and some Labrids, which have teeth strong enough to break the internal calcareous skeleton of sea urchins, and do not seem to be put off by their stings. The names of the extremely few species available are not known with any precision. Size: 10 cm.

Sea urchins

<< Sarcophyton (Alcyoniidae) Starfish >>

See also:
© 2007-2019 aquaguide.net
РЕЙКА , в геодезии - деревянный брус высотой 3-4 м с делениями по 1-5 см, устанавливаемый вертикально в наблюдаемых точках при нивелировании и топографической съемке.