A cuboid fish tank has a length of 5 decimeters, a width of 4 decimeters, a height of 3 decimeters, and a water depth of 2 decimeters. After putting a fish in, the current water depth is 2.3 decimeters, what is the volume of this fish in cubic decimeters?
一个长方体鱼缸的长5分米，宽4分米，高3分米，原来水深2分米．放入一条鱼后现在的水深2.3分米，这条鱼的体积是多少立方分米．
<gadget id="calculator">2.3 - 2</gadget>
<output>0.3</output>

<gadget id="calculator">5 * 4 * 0.3</gadget>
<output>6</output>

<result>6</result>