I added a Lawnmower Blenny to my 55gal about 5-6 weeks ago. I can't say that he has gotten any smaller than when I bought him cause I see him everyday. However, compared to the LBs I see at the LFS, mine seems very skinny. The ones at the store mostly look fat. Otherwise looks healthy. He nibbles at the rock and tank peices daily and is very alert. I have no algea "problem" or noticeable algea on glass. I tried supplementing with dried algea pellets that I had from a freshwater tank. He didn't seem to take to it but hard to tell. He actively goes after frozen mysis but seems to spit it all back out. Thoughts?