Overview
Bacterial infection
Aeromonas hydrophilia
Discoloration of tissue, development of grey or brown “fur” growing on body, listlessness and loss of appetite. This is an unsightly infection that most often appears in bettas.
Columnaris
Cotton-like tufts of white fiber. Almost always a secondary infection (appears when fish is already infected with a disease). True fungal infections, while unsightly, generally do not pose an immediate danger to fish.
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