The Lagoonian Creature sea monster has the wrong buzz markers. I have one placed in an exhibit requiring 'Not Near any Aquarium Rocks',  the aquarium is decorated with plants only and the buzz bonus is not activating.  After aquiring a second creature, this one needed 'Not near any Aquarium Plants', I placed it into the same plant filled aquarium as the first creature and its buzz bonus activated. I then switched the decorations from plants only, to rocks only and the 'Not Near Rocks' creatures buzz activated, while the 'Not near plants' one turned off.

As such, I believe that the buzz requirements for the Lagoonian Creatures are incorrect in the code.