The volume of Jerome's aquarium is:
12 x 18 x 24 = 5,184 cubic inches
The volume of Lim's aquarium is:
12 x 30 x 12 = 4,320 cubic inches
To find how much more volume Jerome's aquarium has than Lim's, we can subtract the volume of Lim's aquarium from the volume of Jerome's aquarium:
5,184 - 4,320 = 864 cubic inches
Therefore, Jerome's aquarium has 864 cubic inches more volume than Lim's aquarium.