infusoria bucket

[MattW]

Was just getting some copepods for the fry from my 5L infusoria bucket culture and found a couple of these guys swimming around. What are they? and are they a threat to the copepods I'm keeping in that bucket?

 

[Seisage]

Looks like a flatworm to me. It could very well be snacking on your copepods, but if there's only one of them, or even a few, it'd be unlikely to make a dent in the copepod population

 

[MattW]

I saw something similar in my 60L a while back but couldn't grab a pic quickly enough. They were in the substrate at that time. The 60L is where I started the culture from, they must have hitchhiked over in the filter sponge.

 

[MattW]

Just caught another 2. Never done pipette fishing before but I'm enjoying it

Edit - Just put a light to the bucket and got 6 more out. seems my Infusoria bucket is infested

 

[Colin_T]

planaria or rhabdocoela

 

[MattW]

planaria or rhabdocoela

You were correct they are Rhabdocoela (Right side). Have about 15+ so far