The Flusians are aquatic by nature, but can poke their heads out of water for a short time in order to converse with land-based off-worlders.  Due to the lack of any sort of landmass on Flusie, you will be expected to meet their delgation on their spaceship. While their ship will be filled to the brim with water, they will have constructed a “non-fish bowl” for your comfort.  A little plastic castle will be put in the non-fish-bowl, to remind you of home.