Cleanup Crew??

[golgi aparatus]

Ok guys. I need some suggestions as far as what to get for my cleanup crew in a 55g Fish only tank.
I have the following in the tank currently:
1 Foxface
1 Coral Beauty
1 Percula
1 Midas Blenny
1 Cleaner Shrimp
1 Chocolate Chip starfish
Question 1: I have been instructed that I need Live Rock in my tank ASAP. Is there anything in my tank now that will destroy live rock? Starfish?
Question 2: Other than the cleaner shrimp, I have no cleanup crew. What would be some reccomendations for a cleanup crew?
Thanks

 

[blooper74]

If you plan on keeping corals, get rid of that star. You don't need to get all live rock right now, you can get base rock and build up your basic reef design the way you want it. Then you can buy a few pounds of really nice live rock and place it throughout your scapeing (this is known as seeding, a lot cheaper). This method takes more time to get established but it is much cheaper.
Clean up crew for a 55- I would say go with this combo.
Scarlet Hermit Crab:15-20
Blueleg Hermit Crab: 15-20
Turbo/Astrea Snail: 20-25
Peppermint Shrimp: 3-5
Emerald Crab: 3-5
Coral Banded Shrimp: 1