Disease Name: Callamanus worms.
Type: Nematode
Description: A red worm protruding from the fishes anus. Several worms may protrude at the same time. They move quickly back into the body cavity when the host fish is active. They cause wasting away disease and white feces.
Causes: Transfered from other infected fish. This worm will move from one fish to another, infesting an entire population.
Recommended Treatment: Fenbendazole, Levamisole or Ivermectin