Ok, I ordered a lawn mower blenny and got this guy a few months back. I know he's not a lawnmower, I don't even think he's a blenny. In the beginning he was super chill and cool to look at (he's totally see-thru and his mouth is always open) but sadly after I lost my coral beauty (the boss of the tank) he started to become a real d*ck. He's now very territorial and as of lately he's been eating any crab that comes in the general vicinity of his lair. I had someone mention he could be a sand perch, but I checked and they are not the same. Anyone know what he could be??