Hi! Any idea what this is in my tank?

[CassLan]

Hello!
First off apologies if this is the wrong place to post this.
This is my first post.

I have a 4 month old tank with some frags and some fish.

Within the last 2 days these odd items have appeared (2 items).
I know that there is a small amount of bubble algae as well.

My question is about the white dotted items in the center of the pics.

Thanks,

Rick

 

[PsychoticBeauty]

Ball-Tipped Anemones.

 

[sde1500]

Yea Ball Tip nem. They are harmless. I had a few in the tank for a while and they eventually just disappeared.

 

[CassLan]

Thank you both!
I was given this piece of live rock.

 

[Sk8r]

:looks like good rock. 99.9% of what you get from live rock is beneficial: a few aren't. Most to beware of: crabs and unscheduled shrimp, two species of worm (eunicid and hermodice carunculata), moss of most any kind (can take a tank), and a couple of varieties of coral that are real aggressive (green star and xenia).