Lots of tiny black worms showing up

[fishywishy]

Today I noticed there are lots of these little black worms that are all over my sand bed, are these things parasites or anything that can harm my fish?

 

[ying yang]

Look up detritus worms.not seen video but can see sandbed.
If detritus worms,apparently get them if overfeeding so if cut back on feeding numbers will deplete or if Intriduce something that will eat them maybe

 

[fishywishy]

Look up detritus worms.not seen video but can see sandbed.
If detritus worms,apparently get them if overfeeding so if cut back on feeding numbers will deplete or if Intriduce something that will eat them maybe

Detritus worms are white these are black