Aquarium Trade
Sea pens are sometimes sold in the aquarium trade. However, they are generally hard to care for because they need a very deep substrate and have special food requirements.
Read more about this topic: Sea Pen
Famous quotes containing the words aquarium and/or trade:
“The Aquarium is gone. Everywhere,
giant finned cars nose forward like fish;
a savage servility
slides by on grease.”
—Robert Lowell (1917–1977)
“Teaching your child a trade is better than giving him a thousand ounces of gold.”
—Chinese proverb.