sera guide - Healthy aquarium fish

2.4 Diseases caused by flagellates Discus infected by intestinal flagellates Diagnosis: Intestinal flagellates (Hexamita sp., Spironucleus sp. as well as other parasites such as Protoopalina sp., Trichomonas sp., Cryptobia sp.) and/or hole-in-the-head disease Treatment: page 30 Observation Decomposing fins, slimy, whitish fish waste, holes in and around the head (especially in case of discus fish), possibly emaciation and darkening. Diagnosis: Piscinoodinium, Velvet disease Treatment: page 31 Observation The fish scrub themselves on decoration and swim hectically in early stages, later on fine whitish yellow dots (< 0.3 mm) on skin and fins; frequently infestation of the gills; fish looks – especially in backlight – as if dusted with flour; velvet-like coating. Piscinoodinium on the back Gourami with Piscinoodinium infection 12