anyone know what is this? any harm to fish and reef ?

[wearenotmonkey]

Hi and as mentioned, please help me to identify this worm and whether it's harmful to fish and reef?

Thanks

[william_choo]

This are slugs.No point keeping it in the tank.u can kill it easily.

[Terryz_]

Looks like a limpet/ scutus or Stomatella... Cant really tell from the bottom.. Need a top view..

They are good grazers but be careful they go out of control..

[wearenotmonkey]

Is this stomatella varia?

[wearenotmonkey]

Ok this is the front picture, any idea?

[Terryz_]

Stomatella, confirmed.. I like them when I had them in my old tank but my current tank dun have..

[allantang]

They comes in few colors if I'm not wrong. Had a few of them in my tank before. Now I don't see them anymore.

[wearenotmonkey]

so this is another algae cleaner ? it is prey to fish and hermit crab? I got quite a number after water cycling and they are growing fast..

[Terryz_]

Yup they are algae grazer.. I would love to have some. Lol.

[stevenchia]

i can past u a few small ones if u wan.

[wearenotmonkey]

I can give u few also. Let me check how many in my tank