Many fish species are recommended for new aquarists setting up an aquarium. The fish listed here generally get along well with others and can tolerate a range of water quality parameters. Before ...

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The swordtail is a beginner-friendly tropical fish species. This hardy fish comes in various vibrant colors and can be kept in a freshwater tank as small as 10 gallons. These traits make swordtails ...

Two females of the newly discovered species, Halichoeres sanchezi or the tailspot wrasse. The males are larger and have different coloration. Credit: Allison & Carlos ...