Help with some ID

[Willrue]

Hello all,

I have a few critters that hitchhiked on our live rock that the wife and I are not to sure about. I was hoping someone could let us know if we are on the right track with our ID of them. We also wanted to know if these things would be reef safe.

Photo 1 we believe is a bristle worm but due to the color it would be considered a predator, and not something we would want in the tank.

The second photo my wife believes is hydroids. I believe its a polyp of some sort.

Photo 3 is the best picture I could get of this crab. Only his legs are covered with hair and he has white tips that are hard to see on his claws. I was going to guess it was an emerald crab but his color doesn't seem to match up.

And lastly photo 4 we believe is a type of stomatella but not 100% sure

Thanks for any and all your help

[Willrue]

After looking at some more post here, could the crab be a mithrax?

[Sugar Magnolia]

First pic is a harmless bristleworm. Second pic is daisy polyps. Third pic can't tell what kind of crab it is. Last one is a stomatella.

Best bet is to trap the crab and take some pics. Bait a tall smooth sided glass with a chunk of raw seafood and tilt it against the glass at lights out.

[killinit123]

1. bristle worm (harmless)
2. looks like some sort of clove polyp to me
3. looks like a emerald crab (harmless)
4. seems to be a stomatella snail (algae eater)

all in all nothing to worry about some pretty cool hitchhikers to be honest

[peasofme]

the claws look like a mithrax (emerald), fairly safe.

[reret10]

I think 2 is some GSP polyps They have a really green tint