Blood worms??

[Jolenebailey]

I have just been vacuuming my gravel and have found many very skinny red worms.. Are these blood works? I do feed my fish frozen blood worms but assumed they were dead. Is this normal?

 

[OBEYtheFISH]

I'm curious about that too
I find them in my filters

 

[Jolenebailey]

Oops blood worms that suppose to say.. Not blood works