Planaria Id! Harmless? Or worrisome?

[JTP424]

They don't LOOK rust colored... but my fiancé does say I'm colorblind....
What do you all think?

 

[KrisReef]

Acoel (or something like that) flatworms that sometimes multiply into the billions and cause grief.
Siphon them out, and keep them in check if you can

 

[JTP424]

Acoel (or something like that) flatworms that sometimes multiply into the billions and cause grief.
Siphon them out, and keep them in check if you can

Thank you! They are ALL over this tank. May be why it crashed.... tank is fairly empty so i should be ok now.

 

[mww00ds]

You could get a wrasse, they are know to eat flatworms