Help ID please

[ineption]

Hi Folks,

Just dipping my corals for spinoid issue and noticed at the base of the frag tile what looks some kind of round flat critter . Maybe flatworm?? , but not sure at all it's sort of gray in colour. Please see pictures attached.

 

[SHNICI]

Hi Folks,

Just dipping my corals for spinoid issue and noticed at the base of the frag tile what looks some kind of round flat critter . Maybe flatworm?? , but not sure at all it's sort of gray in colour. Please see pictures attached.

cheaton SP, this are good like I know, I have many of them

 

[ineption]

cheaton SP, this are good like I know, I have many of them

That's great to know!
I was so worried that it may be a flatworm or something similar.
Thanks for reply

 

[KJ]

Hi Folks,

Just dipping my corals for spinoid issue and noticed at the base of the frag tile what looks some kind of round flat critter . Maybe flatworm?? , but not sure at all it's sort of gray in colour. Please see pictures attached.

Sphaeromatid Isopod (sand scaters).

 

[Miguel Negron]

^+1

 

[ineption]

Is it reef safe? Quick Google didn't yeald much results

 

[KJ]

Is it reef safe? Quick Google didn't yeald much results

Yes.

 

[Emptyness]

Is it reef safe? Quick Google didn't yeald much results

Yes, it is. https://critterguide.ca/sand-skater/