I bought one a few weeks ago and yes I agree they are a great addition. Wai's in Calgary had one the other day that was 2-3 inches long and no they are not toxic.
I plan to make a documentary and call it.......
under the sea world of "Jacques Custodian"
or perhaps
(algae)--Hare Today- Gone Tomorrow.
Anyway my sea hare is the new star of my tank.
