What are these critters?

[Fatboy Reefer]

These are on my GSP and Zoas

 

[ReefSapper]

Looks like aptasia to me.

 

[Fatboy Reefer]

How do I get rid of them?

 

[Idoc]

I second aptasia...you want to get rid of them quickly or they will take over. I just used super glue to cover one that was in a hole where i couldn't scrape it out easily.

 

[Fudsey]

Try to do it out of your dt too. They spread like wildfire

 

[ReefSapper]

I just used super glue to cover one that was in a hole where i couldn't scrape it out easily.

Agreed! easiest way i have found is plug the hole.

 

[Fatboy Reefer]

Gsp weren't looking good anyways and those zoas were always closed anyway. I just eliminated both corals for the good of the whole tank

 

[Fatboy Reefer]

Thanks for the help guys!

 

[Mikedawg]

If aiptasia return, and they may, might want to try Aiptasia X which is basically Kalkwasser I believe to kill them in the tank.

 

[Idoc]

I've heard that you can also inject lemon juice or kalk directly into them if they are in hard places where the rock can't be removed.

 

[MarkLoveday]

I can personally say that lemon juice did the trick for me.