Unkown flat worm looking thing

[Jezzess77]

Hi guys, I was just wondering if anyone could help me identify this critter and If they are a good or bad thing to have in my tank, I have never seen them in my tank until today and I haven't added anything to the tank in months. Thanks in advance for the replies

 

[fishguy242]

hi,third pic kinda looks like nudibranch,would remove until positive id..

 

[Jezzess77]

Okay thanks man will do, are nudibranch bad?

 

[Tired]

Nudibranchs have extremely specific diets, depending on species. For some species, that extremely specific diet is a coral species.

I'd say that's a flatworm, probably? You'll want to remove it though, still. Flatworms also often have specific diets, and many are some form of predatory.

 

[Jezzess77]

Nudibranchs have extremely specific diets, depending on species. For some species, that extremely specific diet is a coral species.

I'd say that's a flatworm, probably? You'll want to remove it though, still. Flatworms also often have specific diets, and many are some form of predatory.

Okay thanks will do