I was hoping some one can give me a I.D looked in my tank seen something looked like smoke almost under water but seen this thing letting stuff out of it
It could be a stomatella. That's how people usually describe them and I see a swirl in the shell in the picture. It also had a little cowrie look to it, but the swirl doesn't match that. It's why I wanted you to touch it, to see it if retracted its mantle or not to show the shell underneath. Either way, I wouldn't worry about it.