Never seen this before.

Nik · Jan 17, 2012

Anyone have any idea what this is. It has been on the glass for 3 days and not moved. Worm, eggs????

ExoticReef.co · Jan 17, 2012

Looks like snail eggs. what type of snails do you have in your aquarium?

Nik · Jan 17, 2012

Turbo, Nerite, Cerith probably others.

Nik · Jan 17, 2012

That's kinda of what i figured, just thought some-one else would have seen them and knew what kind.

iaJim · Jan 18, 2012

It seems that several of my snails will do this on the same days. They're still at it early in the morning before the lights go on. Pretty cool.

Actuary · Jan 18, 2012

That looks a lot like the pattern that turbo snails leave when they clean.

SantaMonicaHelp · Jan 20, 2012

First time see this! Cool.

Big Country · Jan 20, 2012

Do you have any Nassarius snails in the tank? A couple years ago I watched one of mine lay eggs in a pattern very similar to that.

iaJim · Jan 20, 2012

That's what lays them in my tank.