Is this a ball nem?

[Zbutcher]

Hey everyone,

I am curious is this a ball nem? I have a ton of these with a few aiptasia on some 20 year old live rock I have in my sump that I just picked up.

I am curious are they bad? If so, how does one get rid of these things? Does anything eat them? Or did I just ruin my tank...?

Thanks.

 

[James M]

Looks like one . They are harmless

 

[Zbutcher]

Looks like one . They are harmless

I hope so man, some people one here were saying they eat fish etc.

Do you know if a copper band eats them?