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Examples of hardy freshwater fish include Poecilids such as the guppy, [1] molly, swordtail and platy, most species of betta, zebra danios, and some tetras. Generally, fish are hardy only when they have been tank-bred, since wild-caught fish may take many generations to adapt to life in captivity. [citation needed]
Hardyhead refers to a number of species of fish in the family Atherinidae, including: Dalhousie hardyhead (Craterocephalus dalhousiensis) Darling River hardyhead (Craterocephalus amniculus) Drysdale hardyhead (Craterocephalus helenae) Finke River hardyhead (Craterocephalus centralis) Fly-specked hardyhead (Craterocephalus stercusmuscarum)
Mardy Simpson Fish (born December 9, 1981) is an American former professional tennis player. He was a hardcourt specialist. He is one of several American tennis ...
The smallmouth buffalo is a hardy fish that frequents clear, moderate to fast-moving streams, but has been occasionally known in some lakes and ponds. If prefers waters with dense aquatic vegetation and a silty bottom. It has a high tolerance for hard water and can survive in waters with pH ranges of 6.5–8.5.
Breeders have developed a multitude of color varieties (e.g. orange, red, yellow, red/black, and black/white) which are common aquarium fish for hobbyists. The southern platyfish is commonly known simply as the platy (pl. platys or platies), from the fish's original generic name, Platypoecilus.
Many color and tail pattern varieties exist. They generally need a ratio of 1 male to 2 females or more. All guppies and mollies are hardy fish that tolerate lower oxygen levels and temperatures than most aquarium fish, give birth to live young, and readily breed in home tanks. [58] can live in full sea water [59] 66 °F - 84 °F (19 °C - 29 °C)
The fish was once widespread and abundant in the Murray and Murrumbidgee River systems in southern NSW and northern Victoria. However, they have suffered a serious population decline and now seem to be limited to a few sites, mainly in northern Victoria. There are very few recent records of Murray hardyheads from NSW.
The hardyhead silverside is a robust, broad headed, small fish [3] which is distinguished by having a very low and wide lateral process of premaxilla with the upper margin of the anterior bone of the lower jaw which bears the teeth is almost flat distally and has no distinct tubercle at its posterior end. The posterior of the jaw reaches at ...