NOVELTY - Land culture system for cultivating a fish-and-shellfish on land, having a raising water tank which raises a fish-and-shellfish using seawater, the activity water tank which activates water, the removal apparatus which removes the impurities in sea water, ozone generator which generates ozone all over sea water, the purification water tank which purifies seawater, and the circulation system made to circulate through seawater, is new.    USE - (I) is useful for cultivating fish-and-shellfish such as sea-bream, flatfish and blow fish on land (claimed).    ADVANTAGE - (I) is efficiently cultures fish-and-shellfish on land. (I) is inexpensive for culturing fish-and-shellfish on land. The incidence of fish disease is decreased.    DETAILED DESCRIPTION - Land culture system (1) (I) for cultivating a fish-and-shellfish on land, has:    (a) a raising water tank (10) which raises a fish-and-shellfish using seawater;    (b) the activity water tank which activates water;    (c) the removal apparatus (20) which removes the impurities in sea water;    (d) ozone generator which generates ozone all over sea water;    (e) the purification water tank which purifies seawater the purification water tank which purifies seawater; and    (f) the circulation system made to circulate through seawater.    The raising water tank, activity water tank (30) and purification water tank (40), and a circulation system are connected with a water pipe (60a-f) in order. Seawater flows inside each water tank and each device through the water pipe with the circulation system, it raises until it accommodates the fry or spat of one kind of fish-and-shellfish in the raising water tank and extends in an adult fish or adult shellfish. The activity water tank is comprised from the water-storage tank which stores water in seawater temporarily. The pumping device which pumps up seawater from the water-storage tank, and the activity device has a ceramic board inside and the pumping device pumped up contact this ceramic board. The purification water tank is comprised from the reproduction water tank which breeds aerobic bacteria, and the water-storage tank which stores water in seawater temporarily. The aerobic bacteria in the reproduction water tank is discharged regularly by water-storage tank, the removal apparatus consisting of rotary filter and foam separation device (25), and ozone generator generating ozone and sterilizing seawater all over seawater regularly.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic of a land culture system.    Land culture system (1)    Raising water tank (10)    Removal apparatus (20)    Rotatory filter (21)    Foam separation device (25)    Activity water tank (30)    Purification water tank (40)    Magnet pump (50)    Water pipe (60a-f).