stand name:the ocean

localized name:the sea

stand user:tsunami

stand type:colony stand.

appearence: it's  millions of  microplankton that seems like a pile of water from the naked eye. The plankton themselves have an shape of a typical bacterium. 

personality:it has no personaility, like a pile of water.

abilities:

psudo hydrokenesis

the stand can be controlled to be take the shape of any type of tool. the bacteria can be hardened to make a weapon, or be turned into rope. it can also infiltrate someone, and be able to control the body movements or damage them inside out.