My yellow tang will eat my fingers if they would rip off easily, seriously he nips at them when i reach for the algae clip, but i feed it a strip of Seaweed Selects daily, sometimes twice, Formula 1 and 2, Mysis Shrimp, Krill, Zooplankton, and anything else on the menu. As for my Lawnmower Blenny named Lenny, he starved to death because after he devoured all of the algae in my tank, and all of the algae covered live rocks i had to purchase to sustain him, he refused to eat anything else. As much as i love Lawnmowers, I wouldn't purchase another one unless i converted my swimming pool into an artificial reef and waited a good ten years for enough algae growth to keep the Lawnmower belly full and happy. On the other hand, i have a friend who has a fat and happy Lawnmower in their tank the last two years and eats anything she drops in the tank, along with algae. So I guess my point is, who the hell knows with Lawnmowers, hopefully you've got yourself a good one.