what are they called?

sal713

Member
What are those red long (1/2") things I see in my sand up against the glass? they look like veins. I think they are good but I dont remember what they are.
 

sal713

Member
got it. No, not a deep sand bed. My blue damsel likes making a cave under his rock so he flicks his tail really fast to clear out his area. He has it down to the glass bottom!
From what I've seen and read, I dont think its a bristle worm and its not algae..it will be there one hour and gone the next just leaving the formed area where it was.
 
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