Need help identifying these apasia looking algea

[garbby26]

I let these get out of control now I'm trying to find out what they are exactly. I've taken these pics to multiple store and they are not sure. If anybody knows any remedies for these. Thankyou.

 

[TX_REEF]

Looks like Aiptasia for me. Add a peppermint shrimp (or multiple depending on tank size) you can also try a product like aiptasiax to inject the kill them. You will need to be diligent to get these under control.

 

[ISpeakForTheSeas]

Welcome to Reef2Reef!

Those are definitely anemones in that first pic, but I'm not sure what kind they are.

The things in the second pic look like they're growing out of tubes. To my understanding, that would mean they're colonial hydroids rather than anemones, but either way, you most likely want to remove them from the tank. For example pics where you can see similar colonial hydroids and their tubes, see the link below, for advice on getting rid of them, see the quote below:
https://www.reef2reef.com/threads/are-we-sure-these-are-colonial-hydroids.797406/

I've heard smothering the hydroids with kalk paste may work, and here are some other threads with suggestions that might be helpful::
https://www.reef2reef.com/threads/hydroids-a-reference-to-some-strategies.819522/https://www.reef2reef.com/threads/hydroids-how-do-i-eliminate-they-have-taken-over-my-tank.329188/