Botia macracanthus, or Clown loach is native to Indonesia, Sumatra and Borneo.  In the wild, these fish can reach 12 inches in length; however in captivity they generally remain smaller than 6 or 7 inches.  Clown loaches are extremely colorful and inquisitive inhabitants of a planted tank. They should be kept in a group of at least two fish, since they are naturally social, but will be shy and not often visible unless provided companionship with at least one other Clown loach.  They eagerly eat anything offered to them, including blood worms, brine shrimp, and dried food. Some report that these fish occasionally eat holes plant leaves, though I have not observed this behavior in my tank. Water temperature for these fish should be somewhere between 74 and 79 degrees Fahrenheit. Clown loaches tolerate a large range of water hardness and PH. Clown loaches from Borneo have slightly different coloration than those found in Sumatra. (The loach shown above is from Sumatra.)  See this article for more interesting details about this exceptionally beautiful and lively fish.