white worm

So I have heard of Detritus worms, but these are high up on rock work, and just on the rocks all over the place. Can’t seem to find a picture that looks the same. Thanks!

Ive been researching good ways to fatten up my mandarin dragonetts as their weight is going up and down a lot lately I know I will need to find another method of feeding them. I tried Paul B's brine shrimp feeder however I couldn't get all the exactly correct materials and my clownfish decided...