I've been waiting to get algae on my ocean so I can complete that puzzle, but I still don't have any. Could it be because my farmers aren't using the ocean much? I don't understand why they won't use it - it's a nonending supply! All of my villagers seem to get off track a lot :\

BTW, I've been playing for 118 hours and have level 2 farming complete, was going toward level 3. Gimme some algae! LOL