A beetle it releases gives the player 7 shells. A guppycruncher in Virtual Tank acts very much like a guppycruncher in other modes. In Virtual Tank, a guppycruncher is sold in The Fish Emporium for 2,500 shells. The most effective way to take care and feed them is buy a guppy and drop food near the bottom of the tank to lure it since when a guppy is bought, they need to eat as soon as they are spawned. The beetles are worth $150, and can be eaten by beetlemunchers.
Guppycrunchers eat small guppies and produce beetles that move upwards. Guppycrunchers are seen in Tank 3 of Adventure Mode, Time Trial Mode, and Challenge Mode.