Black beard algae, hair algae or brush algae (Audouinella sp., Rhodochorton sp.) belong to the group of red algae – despite its classification, the black beard algae’s
Tropical and coldwater fish have a particular range of water temperature within which it is most comfortable living. And, because fish are exothermic, they rely
Description Columnaris is a common bacterial infection in aquarium fish, particularly livebearer fish (guppies, mollies etc) and catfish. Its name is derived from columnar shaped bacteria,