Mine arrived healthy and active,about two inches I cant lay it across my fingers like in the picture on here but I have an Armatus and I didnt have to take out a small business loan to get it.Luckily the stores around here have rosy's the size of guppies and small size guppies and occasional white clouds.Depending on what the Armatus is positioned in front of the adipose fin really stands out brightly and is a good indicator of what it is.He resides in 29gal.tank with a 2inch thinbar dat for now and they both pretty much ignore each other.