Small green aiptasia???

[lucasb.]

in my reef tank i haven’t introduced any new coral in several months. all of a sudden these small green aiptasia looking things popped up next to my acan. 2 heads were killed idk if it was cuz of them or because i have uncontrollable cyano. the acan was growing good before.

i posted a picture below

 

[Proteus Meep]

I think they are type of Hydroid ( the other possibility is majano but i don't think so)....i have a few that resemble them my nano but just in one 1" area so i let them live as they haven't increased but some Hydroids can become problematic if they reproduce and grow as the can become unsightly and sting

Any chance of a closer up pic ?

 

[Proteus Meep]

Here is a few pics of Colonial Hydroids for you to visually compare....as you can see they can become invasively problematic

 

[shred5]

Agreed looks like a hydroid.

 

[lucasb.]

I think they are type of Hydroid ( the other possibility is majano but i don't think so)....i have a few that resemble them my nano but just in one 1" area so i let them live as they haven't increased but some Hydroids can become problematic if they reproduce and grow as the can become unsightly and sting

Any chance of a closer up pic ?

yeah same here they’re only in one area