can anyone ID this critter

[54seaweed]

trying to figure out what this is real weird looking thing is and if its good or bad
bout 1/2 inch long looks like a shell less snail but with a lobster type tail

 

[rainydave]

Looks like a stomatella snail. They are a good addition to the tank.

Sent from my Kindle Fire using Tapatalk 2

 

[54seaweed]

TY you put my mind at ease