Lines in the sand

[pscott99]

I did a search for this with no luck. It seems over night something is making lines in my sand bed and on my live rock. Tank is 28gal about 6 weeks old.

[monocus]

astria snail?

[bignose]

Can you post a bigger picture.

[pscott99]

Is this any better. I do have 2 astria but I only ever see them on the glass or live rock. I will have to do some night searches.

[Bloodasp]

Some type of worm digging a tunnel maybe.

[lastlight]

Fine sand clings or sticks to some of those tiny worms in the sandbed there might be worms in those 'lines'? Sometime in my tank the flow will unearth them and there is stuff stuck to them.