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The following is a list of aquarium diseases. Aquarium fish are often susceptible to numerous diseases, due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat. Most fish diseases are also aggravated when the fish is stressed.
Adult Siamese fighting fish (Betta splendens) with velvet disease. Oodinium is a genus of parasitic dinoflagellates. Their hosts are salt- and fresh-water fish, causing a type of fish velvet disease (also called gold dust disease). One species has also been recorded on various cnidarians. [2]
However, the disease can also develop without the fish showing any external signs of illness, the fish maintain a normal appetite, and then they suddenly die. The disease can progress slowly throughout an infected farm and, in the worst cases, death rates may approach 100 per cent. It is also a threat to the dwindling stocks of wild salmon.
Betta fish can exhibit unusual sleep behaviors, often resulting in new betta owners assuming that their betta fish has died. In an aquarium, betta fish sleep anywhere in the tank they feel comfortable, including at the bottom on the substrate, floating at the mid-level, or at the surface. Betta fish will sleep on their side, upside down, with ...
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The best known Betta species is B. splendens, commonly known as the Siamese fighting fish and often kept as an aquarium pet. Characteristics All Betta species are small fishes, but they vary considerably in size, ranging from under 2.5 cm (1 in) total length in B. chanoides to 14 cm (5.5 in) in the Akar betta ( B. akarensis ).
Siamese fighting fish (sometimes Betta, esp. US) Betta splendens: 7.5 cm (3.0 in) Betta is the name of the genus that includes more than 60 species other than the Siamese fighting fish. 5 gal [62] 72–82 °F (22–28 °C) [62] 6.5-7.5 [62] Emerald betta: Betta smaragdina: 7 cm (2.8 in) Spotfin betta: Betta macrostoma: 10 cm (3.9 in) Frail ...
VHS disease in a gizzard shad. Viral hemorrhagic septicemia (VHS) is a deadly infectious fish disease caused by Viral hemorrhagic septicemia virus. It afflicts over 50 species of freshwater and marine fish in several parts of the Northern Hemisphere. [1] Different strains of the virus occur in different regions, and affect different species.