Id this critter in my sump.

[Technewb]

I just noticed these crawling in my sump. Flatworms or CUC?

 

[Technewb]

 

[KJ]

Hard to tell from the pic

 

[Technewb]

Here are some closer pics

 

[KJ]

Stomatella snail?

 

[Technewb]

Nope definately not stomatella snail. They dont have antennas like snails. Well i couldnt see any. I dont mind if they are just cuc, hoping its not some pest.

 

[Technewb]

The larger dark area seems to be the body while the smaller dark area after the white strip is the head, im assuming this because of the way they are moving.

 

[KJ]

Can you please put this critter in a container filled with water and take some pics ,close up as you can .

 

[Technewb]

Try this picture.

 

[Technewb]

More

 

[Technewb]

heres a link of a short video

 

[Labridaedicted]

I had a few in my tank one time. They're some kind of Tricladida planaria. No idea on species, but they seemed harmless in all my observations.

 

[Technewb]

Ill check my DT tonight and see if they are around my corals. Im hoping they are harmless. Do you think a peppermint shrimp or crab will go after these critter?

 

[Labridaedicted]

Not likely, but a wrasse may.

 

[BedrockIOMC]

TUbe worm?