The green macroalga Caulerpa microphysa named as Sea grape due to its unique vesicular structures of radial branching like grape is expensive meal in Japan. The fresh and viscous taste of sea grape like caviar is incomparable with that of the other macroalgae.  Sea grape is also rich in polyunsaturated fatty acid, vitamin B2 & E, and micronutrients Zn, Ca, Mg, Se, Fe, Mn, Co.  It is prepared not only as sole fresh salad but also mixed with sea food or meat, deserved high price from the beautiful look, delicious taste and nutritive value.  The other Caulerpa with diversified feature are also the good candidates in the aquarium.