I assume by a regular tank, you mean one which contains Freshwater Fish, such as a goldfish tank. A reef tank consists of a mixed marine environment, containing a mixture of reef fish, corals, invertebrates, and other organisms.
With respect to freshwater tanks, there are several types. Ciclid tanks, planted tanks, tropical tanks, and cold-water tanks could all be considered distinct types.
Marine tanks come in just as many varieties also. There are cold-water varieties, reef tanks, FOWLR (Fish Only With LiveRock), lagoon tanks, and many others.
Hope this helps.
Other reef fishes.
How should I know
on the reef
It is a reef and also has pretty fish
there is over 4000 species of fish living in the coral reef
yes parrot fish do live in the great barrier reef.
They herd the fish against a reef wall, so the fish are cornered.
The coral reef is a home to many types of fish.
Seahorse clown fish sea anamies phycodurus
A fringing reef forms a continuous underwater "wall" for some distance, where as a "barrier Reef" are shorter in distances, and have large gaps in them....and will be between shore and the Barrier Reef..............Sea Rambo
the coral reef is important to the marine life/animals because coral reef stand for shelter.food,and protector for the fish and also protect people
Fish live in it