New life in aquarium

[oneyedmason]

Hello everyone, thanks for your guidance in the past. Noticing these bush like entities popping up in aquarium lately, see attached video, I have no idea if good/bad or what this is. It’s behind the green polyp.

 

[Jekyl]

Aiptasia. Not a good thing. If you have a syringe give them a shot of lemon juice. Or pull frag and cover the aiptasia with super glue

 

[Klyle]

Pretty sure that's aptasia. I say pretty sure because I've never had it but if it is you need to research technique and eradicate it asap!

 

[CMMorgan]

Aiptasia ... kill it. kill it now. Aiptasia X is very handy to have on hand.