what is this?

[JeLeAk]

any one have any ideas what this "snail trail" is... could it be eggs?

also what are these? some kinda sponge or somthing?

and i have no idea what these could be(the clear looking tubes on the rock)

 

[saltwater4life]

umm i'm not 100% sure since i've never really seen any of these before but
1st picture could be eggs just because they look like little egg like sacks

 

[Joe Fish]

The 1st is just snail eggs of some kind.

Your 2nd picture is a type of 'truncate' I think that is what they are called.
They are filter feeders and good to have as i'm told. I have them as well.

 

[Xeruf]

ya, Ive had snales lay egg lines like that in the past, some are still arround a month later and not that much bigger, but there all seperate now, maybe it takes a long long time for them to mature

 

[Dadstank]

1st pic is eggs
2nd pic is a type of sponge... I get them in my sump
3rd is a BIG nuisance if they are what I think they are... if you stir up detritus do they send out a thread like thing that crud sticks to and then they reel it in?... not sure of what exactly they are but they will multiply like wildfire kinda like aptasia...