Over time your blenny may become like mine and eat everything and anything I put in the tank. AT first he only ate algae, then started getting a bit thin after the addition of my Yellow Eye tang and slowly started to make up for it by munching a bit when the clowns were fed. Now he'll eat just about anything including mysis, krill, clams, formula 1/2...I keep telling him he is a vegitarian, but he won't listen
Good Luck! They are the greatest little guys.