Ben, I'm afraid it's bad news... When I first got my tank I had no idea wth I was doing & made many mistakes. I had a terrible ich outbreak & decided to qt all fish in copper treatment & let dt run fallow for 8 weeks to ensure the ich was eradicated. During this time my lawnmower blenny bloated up just like you're describing. I did a lot of reading & found that eating a diet too rich in protein is detrimental to their health & has this affect on their bellies. Because of being in qt with copper, there wasn't any algae for him to eat. He ate the food that I fed my other fish very well, but it wasn't healthy for him. I tried the dried nori on the clip as well as rubber banded to a rock, but only my tangs & foxface would eat it. I even got some pellets called seaweed extreme, but even though the protein content was less, it was still 30%. He survived like this for several weeks but effectually he started having swim bladder problems & after a few days of swimming while involuntarily doing summersaults & flips, he died.
Do you think yours gets a good diet of greens?
