A remake of the popular 3D Aquarium program. This works by including a variable, "Layer," that tells the script the layer of the fish relative to the scenery. This way, the fish will not go back (in layers) unless it is in front, and vice versa. Also, the fish will only change layers if they are not touching the scenery. The one glitch is that sometimes the fish will get stuck moving up and down, due to the random directional change.
