Weird little critters on glass, tooth-shaped?

[Simon_K]

So i found a group of those on the glass, they keep multiplying very fast and I'm getting worried. Is it bad? How do i get rid of them if so?

 

[Barrett]

I believe those are ghost flatworms.

 

[Sashaka]

I believe those are ghost flatworms.

+1. If the flatworm is brown or orange/red, they're bad. This one will multiply if you're overfeeding, but it's not harmful to coral. It is a tasty treat for some fish though. If you have a ton of them already, try picking out what you can get in a net and feed the tank less.

 

[Admann]

I used to have a lot of these until I bought a six-line

 

[Simon_K]

Looks like it! It might not show on the photo, but its the red kind, and from what i read just now, the red ones are supposedly bad? Any good was of getting rid of them? I Don't have or plan to get any wrasses

 

[Admann]

Looks like it! It might not show on the photo, but its the red kind, and from what i read just now, the red ones are supposedly bad? Any good was of getting rid of them? I Don't have or plan to get any wrasses

My six-line is so easy, gotta have webbing or cover though, always picking at noseeums, I love him