Some kind of flat worm?

[IKD]

I was thinking maybe ghost flatworm, but it doesn't have the twin tails

Did you confirm there’s no hard shell on top?

 

[MaxM]

If no shell, look up euphyllia eating flatworms. Had a couple look like that fall off a torch coral that I dipped after I bought it.

Aren't they tiny? This is about a quarter inch.

 

[MaxM]

Did you confirm there’s no hard shell on top?

No, I didn't touch it and I don't see it this morning.

 

[BAMatter]

Aren't they tiny? This is about a quarter inch.

Red planaria are small. This doesn’t look like that. Looks more like another type of flatworm. What corals do you have? Any been irritated lately ?

 

[MaxM]

Red planaria are small. This doesn’t look like that. Looks more like another type of flatworm. What corals do you have? Any been irritated lately ?

Everyone is fine and this thing is on the top front glass no where near any corals. I don't think it's one of the coral eating flatworms

 

[MaxM]

And the winning ID is euphyllia eating flatworm. I went looking at the stems of the few euphyllias I have and saw two on the base of a torch. I pulled it out an pulled them off the stem. Clearly that's the same as what was on the glass.

Maybe this one?

Watch Out for a New More Damaging Euphyllia Flatworm | Reef Builders | The Reef and Saltwater Aquarium Blog

Coral pests are pretty much a fact of life for any reef aquarist or coral gardener, and these parasites and diseases range from slightly irritating to downright lethal. Recently we documented our…

reefbuilders.com

What now?

 

[MaxM]

Do you all think this stuff will work?

Salifert Flatworm eXit​

 

[BAMatter]

Do you all think this stuff will work?

Salifert Flatworm eXit​

I don’t think that works for those. I’d dip all your euphyllia, inspect them all for eggs, and remove any you see with a toothbrush. I’ve seen some people say to repeat this process once a week for 3-4 weeks due to the lifecycle of the EEFW’s.

 

[MaxM]

What do you all suggest for a good coral dip?

 

[vetteguy53081]

Do you all think this stuff will work?

Salifert Flatworm eXit​

STOP

There is a lot of guessing here and it is not a snail. This appears to be a polyclad flatworm. They are not dangerous or as problematic as red planaria. When in numbers, they can smother bases of coral and block the needed light for production of zooxanthellae which is their energy source.
Removal can be accomplished by siphoning them with a 3/8" tubing into a nylon stocking and discard
OR
Add a wrasse such as Yellow coris, 6 line, lunare or malanurus OR even a springieri damsel which will eat them

With the low number you have, for the next 2 weeks you will have to look for eggs and scrape off as there is likely some and would be future acoels. Eggs are really tiny. Flatworm exit is not the solution you want as when it kills the worms, you must siphon up the dead ones daily which can release toxins. Often chemicals are not the answer especially for a couple of worms.

 

[BAMatter]

What do you all suggest for a good coral dip?

I like and have always used CoralRX personally.

 

[MaxM]

STOP

There is a lot of guessing here and it is not a snail. This appears to be a polyclad flatworm. They are not dangerous or as problematic as red planaria. When in numbers, they can smother bases of coral and block the needed light for production of zooxanthellae which is their energy source.
Removal can be accomplished by siphoning them with a 3/8" tubing into a nylon stocking and discard
OR
Add a wrasse such as Yellow coris, 6 line, lunare or malanurus OR even a springieri damsel which will eat them

With the low number you have, for the next 2 weeks you will have to look for eggs and scrape off as there is likely some and would be future acoels. Eggs are really tiny. Flatworm exit is not the solution you want as when it kills the worms, you must siphon up the dead ones daily which can release toxins. Often chemicals are not the answer especially for a couple of worms.

Yeah, now that I know what they are and how to spot them I will keep dipping and watching for them.