Algae ID

[CWalters]

ID on these? Sorry it’s under blue light. Just did a water change and noticed these in one of my back corners.

looked the rest of the tank over and didn’t see anything else

sorry for the blue light

 

[taricha]

these are exposed tubes of sand-dwelling worms etc. When I change my flow and sand gets blown around it leaves these tubes exposed sometimes.

 

[CWalters]

these are exposed tubes of sand-dwelling worms etc. When I change my flow and sand gets blown around it leaves these tubes exposed sometimes.

So nothing to be worried about?

 

[Xavier434]

No. I have tons of these. They are harmless. I dont like how they look but my Diamond Goby mixes the sand a lot and breaks the tubes often enough. I have heard that Arrow Crabs will sometimes eat them too, but I never had any luck with those.