Flatworm ID

[top shelf]

I noticed these guys today in my sump. I think they're Acoel Flatworms but not 100% sure. Can anyone give a positive ID?

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[mcgyvr]

Yep..just the harmless brown ones..

 

[Misled]

Agreed, the red one are the bad ones.

 

[top shelf]

Thanks guys, makes me feel more at ease. With the wrasse in the main display hopefully they'll just stay in the sump and do their thing.