[ryan_lalande]

brad is right oveously shapre matter and for instance tonga is mostly tube rocks and suck but after a few years the rock all look the same

i read sum threads were a guy was saying different rocks had different growth...let me tell you tht were you rock comes from has nothing to do with teh featherduster worms that grow on it..i got all kinds of rock and those thing grow anywre especailly on the back tank glass.....also coralline algea can grow on any and everything the type of rock dosent effect the color of the coralline or anything.,.you lights do

rock is rock..aside from possibly shape which you can get in almost any type of rock, and density which works out good for pricee and size of peicees, brad is right that after a few years of your tantgs snails and crabs pecking away at your rocks, they are all gonna appear the same