I think this is aiptasia?

[TheNewGuyHere]

I’ve heard this is bad - it has been in my tank for about two months before I noticed. It is still on a plug so I can throw it out as the plugs here are only $10.

 

[Crustaceon]

Yep.

 

[TheNewGuyHere]

Thanks! Would you try to treat it or just pitch the frag plug totally?

 

[SlugSnorter]

Thanks! Would you try to treat it or just pitch the frag plug totally?

its treatable (theres a few guides on here on how to do so) just do not try and remove it physically, it will only make it spread.

 

[TheNewGuyHere]

I just threw out the whole frag - they are only $8 here and I didn’t want to cause an issue!

 

[SlugSnorter]

I just threw out the whole frag - they are only $8 here and I didn’t want to cause an issue!

look around the tank and sump, make sure it hasn't spread anywhere