- Gray/white patches in a ‘column formation’ either ascending or descending on the body of the fish
- Gray/white patches around its mouth
- Damaged, deteriorating fins and tail.
During a later stage of Columnaris a fish’s gills may get affected, symptoms are:
- Gills becoming ulcerated and sore
- Sores will start appearing all over the body.
- The fish will keep it’s fins very close to the body and will not be spreading them at all
It is always a good idea to isolate new fish in a clean separate tank for about 2 weeks before introducing them into a main tank to prevent onset of Columnaris. In the early stages, a good universal anti-bacterial medication will be able to recover the fish to full health. As with all diseases we at Aquascope always recommend isolating diseased fish to a separate tank until they are at full health again just so the other fish in the tank are at less risk of catching a disease. At later stages of the disease, especially when the gills become affected, the internal organs of the fish will become infected and this is usually fatal unless antibiotics are administered in addition to the anti-bacterial medication.
For the late stages of Columnaris when the gills start to become ulcerated and sores appear an antibiotic must be administered to the fish, we recommend Fish Mox Forte Amoxillin capsules.