Evil Fish Tank got its name during building when Tony and Dan thought it looked like a fish tank.
Evil Fish Tank was scheduled to fight Nsyncerator, but Nsyncerator had technical issues and was forced to forfeit. Evil Fish Tank won by default and advanced to the round of 16, where it faced Mecha Tentoumushi.
Evil Fish Tank went straight at Mecha Tentoumushi and pushed it to the killsaws, ripping the antenas off of Mecha Tentoumushi. Evil Fish Tank kept evading the shell of Mecha Tentoumushi until at one moment, Mecha Tentoumushi was able to smother Evil Fish Tank, but Evil Fish Tank pushed it under the pulverizer, which flattens the top of Mecha Tentoumushi. In the remainder of the match, Evil Fish Tank pushed Mecha Tentoumushi into the killsaws and against the arena wall until the time ran out. Evil Fish Tank won on a 30-15 judge's decision and advanced to the quarterfinals, where it was pitted up against Toe-Crusher.
In the beginning of the match, Evil Fish Tank charges straight at Toe-Crusher and both robots were moving around the killsaws. Toe-Crusher drives over Evil Fish Tank and Evil Fish Tank pushes Toe-Crusher on the killsaws. Evil Fish Tank gets caught on the killsaws and lands on its back. Evil Fish Tank was having trouble moving around with the lower ground clearance. Evil Fish Tank got itself caught under the pulverizer and the pulverizer hits Evil Fish Tank's wedge, which gets snapped off. Having drive problems while inverted, Evil Fish Tank intentionally drives over the killsaws again in an attempt to right itself, but it doesn't work. Toe-Crusher continues to hit Evil Fish Tank with its spiked hammer and gets caught on the killsaws again. Toe-Crusher pushes Evil Fish Tank to the killsaws before the time ran out. Toe-Crusher won on a 36-9 judge's decision and Evil Fish Tank was eliminated from the tournament.
Evil Fish Tank didn't participated the lightweight royal rumble at the end of the tournament most likely due to damage from the pulverizer in its last match against Toe-Crusher.
- Wins: 2
- Losses: 1
Mark Beiro Introductions
"Hungry for a steaming bowl of pneumatic chowder, here is EVIL FISH TANK!"
"You know this barbarian from the aquariums here when you see dead robots floating on the surface. Introducing EVIL FISH TANK!"