Originally Posted by Spencer1044
Wow that's a lot what do you all use on your setups and what if we didn't use live coral
Are you talking about live rock or live coral? They are two different things.
Live rock is used as filtration for the tank. It comes with hitch hikers and things that live in it. Coral is a living creature that grows. Live rock is generally composed of coral skeleton unless it's man made.
Live rock makes up the biological filtration of our tanks. However, dry rock will become live when you cycle the tank, it will just take a little longer.
Dry rock costs $2-$3 per pound while live rock can cost $5 - $10 per pound. You need about 1lb of rock per gallon of tank volume. Buying live rock for a tank that size will be about $500 versus $130 if you bought all dry rock.