What defines a reef?

[ogdog30]

Well the subject is the Question. What is the least that could be a reef?

 

[flatzboy]

Imo, reef= inverts, liverock. Your liverock is already full of sponges and small corals and stuff.

 

[ogdog30]

SWEET! I now think i can call my tank a reef tank! i have LR smothered in all colors of algae, some sponges that came on the LR too , but no corals,....yet. (i'm plannin to get some zoo's)
:jumping:

 

[flatzboy]

If you have liverock i'm sure there is some form of coral on it you it may just be to small to see.