diy co2 w worms

[timwag2001]

i have a home made gravel vac reactor. today i noticed that there are little worms in there. kinda like large micro worms. what's the deal with that? anyone know what they could be or how they got there. or even how they're living in a co2 environment without oxygen.

 

[CrazyPlantLady]

Could be planaria, usually a symptom of overfeeding.

I'm assuming the CO2 reactor is in contact with the tank's water. If so, it should have oxygen dissolved in it, not only CO2.

 

[mgamer20o0]

i would have to agree with out pics.

 

[timwag2001]

 

[Wendal]

I have noticed these in my tank also.

What are they?