I have CC in my 90 gallon and am wondering if the sand is better. If I change to sand, do I just change a little at a time? The tank is very new (started 12/31/05) and about thru cycling. I have 2 clownfish in there at this time.
With your tank that new, its a good bet you dont have a lot of beneficial critters or bacteria in your CC, all of that is going to be on/in your live rock. If i were you i would just switch out all the CC with sand in one big swoop.
i had crush coral and i hated it. as it ages it is good for lots of benficial stuff, but if you disturbe it then your water gets real milky. I have sense stuck with sand no mater what. And take a look at my sand, everyone loves it. its called MARINE SAND, about 100 lbs of it.