What the heck are these?

[Nykonsdream]

Here on my glass of the tank, there spiral and really small



The pic isn't the greatest but they seem to be some type of coral

 

[Ingy]

google collonista snails. When they first appear, they tend to be just white. As they get bigger (only about 3-4mm) they get brown stripes radiating out from the middle. they are very normal. They hide during the day, but I've found the smaller ones take longer to get into hiding in the morning.

 

[Sniperhank]

Agreed with above. A normal part of tank life is these guys showing up in mass. They'll eventually die back some.

 

[Nykonsdream]

Would love to agree but it looks more like a feather then antennae coming out of it

 

[saltcreep1025]

spirobid worm