Need glass cleaners. What is best?

[kmatwill]

What type of snails should I get to keep my glass clean?

200G - open top
Softies
LPS
BTA
tiny blue legged hermits
3 scarlet hermits
skunk cleaner shrimp
nassarius snails
fighting conch

[Unfair Advantage]

Astrea's. Get alot of 'em for that 200gal :D !!!!

[hwynboy]

IME astreas like to hang out on my LR and always at the top of my tank. I would reccomend the big golf ball size Turbos. they move like crazy and clean well behind them.

[kmatwill]

Would either of these eat my coral?