sera guide - Healthy pond fish

2.6 Diseases caused by Plathelminthes (flatworms) Observation Breathing becomes stronger every day until the fish stay under the surface panting; sometimes one-sided breath- ing; one or both gill lids closed or spread open; small flukes usually sized less than 1 mm sit on the gills (possi- bly visible on a sedated fish with a magnifier); fish scrub themselves at the gill lid. Diagnosis: Gill flukes / Dactylogyridea Treatment: page 32 Observation The fish scrub themselves and become apathetic. Cloudy skin and small, motile worms on the skin (partially visible with the naked eye, otherwise detectable with a magnifi- er; mostly smaller than 1 mm). Diagnosis: Skin flukes / Gyrodactylidea Treatment: page 32 15 Gyrodactylidea Gill filaments with Dactylogyrus infestation