Fish Health - Common Problems and Treatments

Sometimes fish fall ill. They are sensitive creatures and can be susceptible to disease, especially when water and living conditions are not accurately maintained. Use our handy fish health tool below to see what common fish diseases might be affecting your own fish and which are the best medicines to treat them with. 

Click on any of the 'i'  icons below to see common fish diseases and how you can treat them!

Fin, Tail, Mouth and Body Rot 

(Bacterial infection)
Frayed, decaying and damaged fins and tail. Fins may be red at the base. Open sores. 

Treat it with...

King British Fin Rot and Fungus Control

King British Fin Rot and Fungus Control

100ml

King British Fin Rot & Fungus Control is a veterinary medicine containing phenoxyethanol for the treatment of fin rot & fungal infections.

Velvet (parasite)

A fine, yellowish dust beginning around the back of the head, progressing to fins and eyes. Flicking and rubbing against objects. Rapid gill movement and gasping at water surface.

Treat it with...

King British Velvet Control

King British Velvet Control

100ml

A veterinary medicine containing copper sulphate for the treatment of dinoflagellate parasites

Fungus

Cotton wool-like growths that appear on the body or the fins. 

Red streaks on fins and tails. 

Often follows fin rot.

Treat it with...

King British Methylene Blue

King British Methylene Blue

100ml

King British Methylene Blue is a longstanding treatment for aquaria, used by generations of fish keepers. It is effective against a range of fungal & bacterial infections.

White Spot

(Ichthyophthirius multifiliis Parasite).

Small pin head sized white spots on the skin and fins. Flicking and rubbing against objects. Rapid gill movement. Fish appear agitated.

Treat it with...

King British White Spot Control

King British White Spot Control

100ml

A veterinary medicine for the treatment of fish infected with White Spot, also known as Ich or Ichthyopthirius

Slime Disease

Sluggish behaviour, dull colouration, excess mucus, damaged gills, rapid gill movement.

Treat it with...

King British Disease Clear

King British Disease Clear

100ml

King British Disease Clear is a veterinary medicine containing silver proteinate. This is a broad-spectrum treatment that is helpful against most bacterial & fungal infections.

Ulcers

(Bacterial infection)
Reddened sores on the body of the fish. Sores may appear white in some patches.

Treat it with...

King British Bacteria Control

King British Bacteria Control

100ml

King British Bacteria Control is a veterinary medicine containing formaldehyde for the treatment of bacterial infections, gill rot & external ulcers.

Treat it with...

King British Velvet Control

King British Velvet Control

100ml

A veterinary medicine containing copper sulphate for the treatment of dinoflagellate parasites

King British Bacteria Control

King British Bacteria Control

100ml

King British Bacteria Control is a veterinary medicine containing formaldehyde for the treatment of bacterial infections, gill rot & external ulcers.

King British Methylene Blue

King British Methylene Blue

100ml

King British Methylene Blue is a longstanding treatment for aquaria, used by generations of fish keepers. It is effective against a range of fungal & bacterial infections.

King British Disease Clear

King British Disease Clear

100ml

King British Disease Clear is a veterinary medicine containing silver proteinate. This is a broad-spectrum treatment that is helpful against most bacterial & fungal infections.

King British White Spot Control

King British White Spot Control

100ml

A veterinary medicine for the treatment of fish infected with White Spot, also known as Ich or Ichthyopthirius

King British Fin Rot and Fungus Control

King British Fin Rot and Fungus Control

100ml

King British Fin Rot & Fungus Control is a veterinary medicine containing phenoxyethanol for the treatment of fin rot & fungal infections.