"Neored5" wrote in message
...
Hey

is it right you can run a tank on just live rock as a filtration system
and
don't need any other kind of filters?

No. You will still need filters for larger matter and to aid in water
movement. Also the equipment you use will depend on the type of tank you
are using and the tank size. Give us more info please.

Tank size
Type of critters (Corrals, Inverts, Fish)
What type of substrate (Crushed Corral, Sand ect.)

With live rock you can however get rid of your under gravel filter. In fact
this is a must.

HTH

Ed