Sea Hare Question

[Eb0la11]

So Ive had this sea hare for a month or two now, got him to clean up my HA and he totally has eliminated it.

Now I know they are toxic if they die, but we still have lots of other algaes growing. What do you guys think I should do with him? He doesnt seem to eat the other algae but still "works over" the rocks. I just dont want him to be malnourished.