Pest ID/Help?

[Bucky241]

So I just got a piece of a zoa colony dragged at my LFS. Brought it home, started to drip it and the first one, which to me looked like a bristle worm after research, the second looks like a zoanthid eating spider or whatever it's called. I since removed those two. Although I after coming home after having to do some emergency errands, I went to hydrogen peroxide dip, since that's all I could find around, and noticed the third guy which looks to me like a serpent starfish. Any help? I haven't dipped a coral before so I don't have the proper fluids to do so at the moment.

 

[19Mateo83]

The starfish is a brittle star, great CUC member. The worm looks like a bristle worm. The spider thing I’m not sure about but I would remove it just to be on the safe side.

 

[Bucky241]

The starfish is a brittle star, great CUC member. The worm looks like a bristle worm. The spider thing I’m not sure about but I would remove it just to be on the safe side.

I removed all of them, the bristle worm and the spider thing got disposed of and I kept the starfish just in case it was a safe guy. Should I be worried about eggs of either of them? My LFS owner cut this piece off of a larger rock and there's barely any rock left on the frag. I did a hydrogen peroxide dip but I don't think it did much, the spider thing didn't want to come off, had to use tweasers

 

[ISpeakForTheSeas]

I removed all of them, the bristle worm and the spider thing got disposed of and I kept the starfish just in case it was a safe guy. Should I be worried about eggs of either of them? My LFS owner cut this piece off of a larger rock and there's barely any rock left on the frag. I did a hydrogen peroxide dip but I don't think it did much, the spider thing didn't want to come off, had to use tweasers

You may potentially need to be wary of eggs from the spider - some pycnogonids (sea spiders) can reproduce successfully in our tanks; some carry their eggs while others literally lay their eggs in their host coral.