External Arthropod Parasite Fish Diseases
This parasite is extremely rare in aquarium fish, and despite its name, it’s not a worm. It’s a copepod, and it’s easy to spot.
- Redness around the anchor point
- Ulcers can appear
- Inflammation on its body
- Tiny white-green or red worms found at the base of fins
- Difficulties breathing
- General lethargy
- Rubbing (flashing) against objects
It’s caused by adding fish into your aquarium which is already carrying the parasite or plants that have larvae on them.
Potassium permanganate is considered the best treatment, and it can be used as a tank treatment or dip.
Other options include formalin dip, salt dip, and modern antiparasitics.
Removing the parasite with tweezers is one of the surest ways to get rid of it. You’ll need to take care when doing this.