Newbie trying to identify some new occupants of my tank

[brothacraig75]

Hi everyone, new to the site and new to the hobby. I jumped right in with a 180 gal saltwater tank and 50/50 fish coral is the plan. The tank has been cycling for the past 5 weeks and I've added both cured and uncured rock during that time. I also have 3 damsels remaining out of 6 and they seem to be doing very well. Long story short, a few weeks ago I discovered that my tank was FULL of what appear to be copepods, which I've learned is actually great. However, this morning I came across two new occupants that are on the front glass of the tank and just wanted to make sure they were "acceptable" occupants. The white "thing" has relocated to an unknown location within the tank but the star-like looking things are still in the same spot as this morning.

Thanks for any help or guidance.
Paul

[Sniperhank]

This might help:Xtalreef - Reef Saltwater Aquarium

[AbsoluteFaye]

Yeah they look like hydroids. There's diff stages of them.

[brothacraig75]

Good, bad, neither? They don't appear to be on my live rock but its a little hard to see them as they're pretty small. If I can catch them on the glass, should I remove them? Again I only have live rock and three fish in the tank and so far everything is running smooth...wanna resolve this quick if its a potential problem?

Thanks again.

[mr_X]

The first pic is a flatworm. The clear ones are commonly seen in new setups, but disappear shortly after the tank settles in, never to be seen again.

[brothacraig75]

That gives me some relief!! Thank you.

[brothacraig75]

When I slide my cleaning magnet against the star looking thing it takes off and relocates on the front of the glass.