What is on my live rock?

[gizzo12]

Does anybody know what this is?

 

[35ppt]

Ball anemone

 

[gizzo12]

Ball anemone

Is it bad or good?

 

[35ppt]

Is it bad or good?

Depends on who you ask. My understanding is that there are two types, Caribbean and Pacific. The Caribbean ones get about two inches and can possibly eat fish. But the Pacific ones apparently only get up to about half an inch and are less aggressive eaters. If it were me, I'd keep it and see how it goes. Then can spread but typically not plague like numbers like aptasia can.

 

[flsalty]

Depends on who you ask. My understanding is that there are two types, Caribbean and Pacific. The Caribbean ones get about two inches and can possibly eat fish. But the Pacific ones apparently only get up to about half an inch and are less aggressive eaters. If it were me, I'd keep it and see how it goes. Then can spread but typically not plague like numbers like aptasia can.

The Caribbean stay small and harmless. The Pacific ones get large.

 

[35ppt]

The Caribbean stay small and harmless. The Pacific ones get large.

TY for the correction