Can someone ID this creature?!?

[alabella1]

 

[alabella1]

Looks to me like a flatworm? This is in my frag tank. Should I be worried at all?

 

[Reefkeepers Archive]

That looks like a euphyllia eating flatworm, dip the coral and scrape off any eggs you see. Repeat that process every 1-2 weeks for the next 2-4 months

 

[Reefkeepers Archive]

That looks like a euphyllia eating flatworm, dip the coral and scrape off any eggs you see. Repeat that process every 1-2 weeks for the next 2-4 months

On second thought, those tails don't look like EEFW to me, almost like a red planaria. And EEFW aren't clear/translucent nor have i ever seen one move that fast. Any better photos? @ISpeakForTheSeas?

 

[alabella1]

On second thought, those tails don't look like EEFW to me, almost like a red planaria. And EEFW aren't clear/translucent nor have i ever seen one move that fast. Any better photos? @ISpeakForTheSeas?

It sure looks a lot like this...

https://reefs.com/magazine/pest-free-reefkeeping-iii-the-flatworms/

That being said, what does it look like if/when they eat your torches and/or hammers, because I have some that have suddenly liquified and or lost heads.

 

[alabella1]

On second thought, those tails don't look like EEFW to me, almost like a red planaria. And EEFW aren't clear/translucent nor have i ever seen one move that fast. Any better photos? @ISpeakForTheSeas?

Looked them up... def. NOT that thankfully. This one was very clear and had a yellowish section on it's back.

 

[Reefkeepers Archive]

It sure looks a lot like this...

https://reefs.com/magazine/pest-free-reefkeeping-iii-the-flatworms/

That being said, what does it look like if/when they eat your torches and/or hammers, because I have some that have suddenly liquified and or lost heads.

Yep, that looks like a match. Ghost flatworm.

 

[Teverson45]

It looks like a matter daddy...

 

[Reefkeepers Archive]

That being said, what does it look like if/when they eat your torches and/or hammers, because I have some that have suddenly liquified and or lost heads.

When EEFW consume corals, they will eat the flesh band if I'm not mistaken and also devour heads, an irritated euphyllia/Fimbriaphyllia that is has a receeding flesh band and is slowly loosing heads is a clear indicator of EEFW, though that can also be caused by inadequate water parameters. What are your parameters? What PAR are they in, what's the flow like? Also liquefying heads may be BJD, did said heads have a brown, jelly like substance covering them/on them? Did the decline happen rapidly? And did it spread to other corals?

 

[EeyoreIsMySpiritAnimal]

It looks like a matter daddy...

Helpful comment

 

[ISpeakForTheSeas]

Knew I missed one I was tagged in recently:

Yeah, definitely a Convolutid (taxonomic family Convolutidae) flatworm - Ghost Flatworm (Amphiscolops sp.) would be my guess

 

[alabella1]

Knew I missed one I was tagged in recently:

not a threat?

 

[alabella1]

When EEFW consume corals, they will eat the flesh band if I'm not mistaken and also devour heads, an irritated euphyllia/Fimbriaphyllia that is has a receeding flesh band and is slowly loosing heads is a clear indicator of EEFW, though that can also be caused by inadequate water parameters. What are your parameters? What PAR are they in, what's the flow like? Also liquefying heads may be BJD, did said heads have a brown, jelly like substance covering them/on them? Did the decline happen rapidly? And did it spread to other corals?

I'm leaning BJD. I've already started treating the tank with Cipro to try to save the other coral

 

[ISpeakForTheSeas]

not a threat?

Ghost flatworms are mostly harmless, but it's a good idea to remove them before their numbers get out of hand.