beginners really should have lr,
It makes the job much, much easier,to keep a healthy tank
and the skimmer will also help alot, but don't be mislead, you don't need a skimmer BECAUSE you have live rock
Sounds to me as if your lfs wants you to use cc and an undergravel filter, just by the lines he uses
well, FYI, if this is the case, cc and a ugf is not by far the best thing you can do for your little marine buddies
Do some research, before you take any advice from any lfs, most ofteeen their opinions don't reflect waht is best, but what is on their shelves
You did right by coming here and asking, this place is set up for people to share their experinces and help one another, and one thing you can bet on we have been through what we say, and we can not profit from advising you at all