Fish Fungus is a rare Pet Germs Trashie from Series 7.
Fish Fungus is a fish made of slime with pointy teeth and he has fish fossils stuck to him.
He looks like a fish but is really a fungus, his warts and his boils are truly humungous! He smells and he pongs, they should put him in songs, the ode to the grossest Fish Fungus!
According to his bio he is not actually a fish.