What do you recken this is? Mojano?

[Rubberdam604]

Hi y'all,

I had a mojano issue in my tank years and years ago that seems to have been obliterated. Recently, we have been having these green polyps appears on rocks throughout the tank and aren't quite sure if it's friend or foe. I do not believe them to be mojano, but they are spreading with some pace and do have me a bit concerned. Any idea on what it is and if it should be eradicated? They are about 1 cm in diameter with long protrusions around a green centre (see image)

 

[Rtaylor]

Hi y'all,

I had a mojano issue in my tank years and years ago that seems to have been obliterated. Recently, we have been having these green polyps appears on rocks throughout the tank and aren't quite sure if it's friend or foe. I do not believe them to be mojano, but they are spreading with some pace and do have me a bit concerned. Any idea on what it is and if it should be eradicated? They are about 1 cm in diameter with long protrusions around a green centre (see image)

Pretty sure it’s a palythoa

 

[Rubberdam604]

Pretty sure it’s a palythoa

Kill or keep?

 

[Pistondog]

They will multiply, but can be controlled by manual removal.
I dont think they are bad unless they are crowding someone else out.

 

[V A R I A N T]

Looks like green palys. Some of them can grow rapidly. If you don’t want them, now is the best time to remove them. Kalk paste works well, too. Watch your alkalinity if you run a nano tank as the paste can affect DKH. Also be advised of paly toxin poisons with manual removal.

 

[Cell]

Also look a bit like baby rfa's.