WTB sea hare and/or lawnmower blenny

[Frogger]

Looking to buy/rent a hair algae (derbesia) eating sea hare.

Would buy in a second a used lawnmower blenny that eats hair algae. Mileage not an issue.

Also anything else that is proven to eat hair algae like an urchin etc. My tuxedo urchin only eats coraline algae. Every thing else I have added kole tang, foxface, turbo snails don't even look at it.

Greater Vancouver only