DISEASE FLUKES
Highly contagious external parasites belonging to the classes Trematoda and Cestoda species in the family Dactylogyridae parasitise the gills and digestive tract.
SYMPTOMS
Fishes show signs of extreme skin/gill irritability, continually scratching and scraping on rocks etc., and "flicking" the pelvic and dorsal fins against the side of the body. Gill plates are clamped or close tight or not functioning when breathing.
TREATMENT
Do 75% water change and treat the tank with formalin (Quick Cure, Formalite...