identity of critter??

[ryan0292002ca]

I have another question about something in my tank, I can't get a good look at it, but it sometimes spews white stuff that looks like smoke, anyone know what this might be, thanks in advance

 

[Curtswearing]

It's probably a snail spawning.

 

[lizardarm]

it'smost likely a snail ryan.
i've got several of them in my tank, they look a bit like a cross
between a snail and a chiton.
this milky white substance is supposedly good coral food,
so consider it a good thing.