Can someone help me ID this?

[Keybilly]

Sorry the picture isn’t fantastic but it’s the best I could get because they’re tiny, these are growing everywhere in my tank on the glass, it’s a newer tank about 2 months old. I think they look like starfish but want to make sure they’re not aiptasa. Thanks in advance for your ID help!

 

[IKD]

Looks like hydroids. These are generally harmless and disappear over time as the tank matures.

 

[Keybilly]

Looks like hydroids. These are generally harmless and disappear over time as the tank matures.

Thank you!!!!