I am thinking of getting about 50 lbs of dry rocks this weekend with another 20 lbs of live rock. that would give me 60 lbs of live rock and the 50 lbs of dry rock. How should I place it in the tank with dry rock on bottom or top or mixed up with live rock all over. I have a 110 gallon tall aquarium. Any advice on aquascaping would be greatly appreciated like lessons learned from some of you vets would be nice. Is the dry rock a good or bad idea and also I have noticed my sand turning brown on top not slimy or anything just darker in some spots anyone know what this is? Also should I get smaller pieces of live rock or larger and is it better to get round or flat pieces. One last question what is the best way to put it all together I have seen pvc to keep it together or some kind of clay but drying out my live rock for something to cure is not an option or should I just figure our a way to stack it without anything holding it together? Sorry I know this is a lot of questions but still a newbie and reading and trying to learn as much as possible.

