Simple star ID and other mystery thing

[namsupak]

1. Here is a hitchhiker star that I found on a coral I got from a local guy. Some sort of brittle star I guess but not sure if it more specifically a certain star.

2. Also there is this other thing I found on my live rock that has been in the system for years. There are actually three of them on this rock I have a pick in the daytime and the night time.

Just curious if I should pitch these guys or not. I have a mixed reef with clams, some inverts and a few small fish. Any help is appreciated thanks

 

[tetra-tag]

The mini-brittle star is harmless, even beneficial. Mostly they filter feed, but are also part of the clean up crew. They stay small and reproduce in some systems.
I can't tell what your other items are.

 

[namsupak]

Thanks thats good to know about the star, I was worried it was the kind that would get bigger. Here are some more details about the other things. There are three of them kind of cylindrical in shape. They have an orange foot or base and seem to be attached to the rock as I have not seen them move. The heads has very small translucent tentacles at the end of which are these white tips or spheres.

 

[namsupak]

I have an idea that it may be some sort of anemone after looking at a few id tags. They do not look like majano anemones but I have never seen one in person so I am not sure.

 

[donya]

The pink/orange critters may be white ball corallimorphs. If they are, they can be pretty interesting and don't get too big if they don't get a lot of food. However, if they start to approach a tentacle span of ~1"/2.5cm, they probably aren't safe if there are any really small fish in the tank. I had one about that size nab a small clown goby that got a bit too curious.

 

[tetra-tag]

...There are three of them kind of cylindrical in shape. They have an orange foot or base and seem to be attached to the rock as I have not seen them move. The heads has very small translucent tentacles at the end of which are these white tips or spheres.

Google Pseudocorynactis, and for that matter Corynactis.