9:48

This YouTube video (Dutch/Flemish) by Gerald Bassleer reviews the five most important diseases in freshwater aquarium fish, using macroscopic and microscopic footage to illustrate signs, causative parasites/bacteria, and diagnostic clues. The five conditions covered are: (1) witte stip (Ich), (2) bacteriële infecties (notably columnaris), (3) huidtroebeling and fine ‘pepper’ deposits from parasites like Ichthyobodo and Oodinium, (4) Spironucleus (formerly Hexamita) — an internal intestinal parasite common in cichlids/discus, and (5) skin worms (Gyrodactylus). The presenter emphasizes microscopy for accurate diagnosis, treatment guidance, and consulting an aquatic veterinarian or specialist; he also references a Dutch-language book with treatments.

Chapters

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Books on fish diseases. See www.geraldbassleer.com

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Fish disease case nr. 365 Tankraised Apistogramma borelli with bacterial infection and few tubercles

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sick cardinal tetra. See link complete video. #fishdisease #aquarium

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Fish disease case nr. 362 Sawbwa with gill flukes, Nematodes Capillaria and bacterial infection

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