Anyone know what this is??

[isaacfish]

So this little guy popped up all around my tank anyone know what it is and if it it harmful or something

 

[Pistondog]

Aptasia

 

[isaacfish]

Is it harmful and is it a coral

 

[Pistondog]

Pull it, it is invasive.

 

[isaacfish]

Every time I try to grab it it shrinks and I can’t get it and we’re did it come from?? I don’t even know it wasn’t there last week and I have done anything but a water change

 

[Dom]

Aptasia. Some can be nice, but it is a pest and will overrun your tank if you don't keep after it.

So unless you are committed to your husbandry, I'd pull it.

 

[kindafun]

It is unwanted, a pest. It will irritate other corals and can multiply very quickly. You want to get rid of them.

Searching here will lead to all kinds of advice.

 

[Reign1]

Aiptasia .. get some Aiptasia killer or livestock that eats it ..

 

[isaacfish]

I’m in thanks for the advice

 

[Dom]

Every time I try to grab it it shrinks and I can’t get it and we’re did it come from?? I don’t even know it wasn’t there last week and I have done anything but a water change

Pull the rock and scrub it off. Rinse in old tank water.

 

[isaacfish]

How do I get rid of it without hurting my other corals