Help me with a clean up crew numbers and what

[lil.guppy]

Ok I need to know of a clean up crew that wont eat the good purple algae and how many
Also, where did you get YOUR clean up crew? Online or at your LFS?
If online can you PM me the location?

 

[pleasants9]

I have a 55 with a sandsifting starfish, 2 large nassarius snails and 5 small nassarius snail, about 5 turbo snails and 4 blue leg hermits, they seem to do a decent job but I bet I could def have more. I got them all at my lfs cause the prices were about the same. and i stay way from shipping if possible.