[Louise163]

If gills look red and inflamed and water quality is good you could be dealing with gills flukes.
Flukes also cause fish to go thin.

A fish being very thin when eating can mean fish tb, internal parasites, old age, flukes, velvet.

Gill fluke flukes or skin flukes signs are as follows.
A fish can look opaque with excess mucas on them.
Flicking and rubbing.
Laboured or heavy breathing.
Red inflamed to bleeding gills.
Swimming in a jerky movement.
Spitting food out.
Sores of the body of the fish.

Flukes also cause bacteria infections, as in here hooks they carry a nasty bacteria which enters the fish blood strream when the parasite pierce the skin.
So if fish do have flukes best to treat with a bacterial med after you have finished the parasite med.


Internal parasite signs are.
Long stringy white poo.
Or clear poo.
Enlarged anus, or red inflamed anus.
looking skinny or bloated.
Worms hanging out of the anus.

Zebra danio can be prone to fish tb, the spine can bend in old age.
Its very hard to say a fish died of tb without tests done on a dead fish at the vet.