I bought this guy about 3 months ago from Seaside in HB, he was tiny. He has been a big help in getting the tank in better shape, but I'm worried he ate too much.
Mine has looked like the for over 4 years... Looks like he swallowed a grape at all times.
They have a pretty high metabolism, and eat constantly. Fat = good and happy when it comes to Lawnmower Blennies