Fire ants to water beetles
Fire ants attack in numbers and (as we see) can overwhelm strong but lonesome critters like beetles.
Fire is also the opposite of water and has much more destructive force.
Also could be a comparison of the two species to show the superiority of the ants, which are smaller but able to work together.
To help improve the meaning of these lyrics, visit “Commencement (at the Obedience Academy)” by Aesop Rock Lyrics and leave a comment on the lyrics box