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A neon tetra can appear slightly plump in the belly due to having overeaten. Neon tetras need dim lighting, a DH less than one, about 5.5 pH, and a temperature of 75 °F (24 °C) to breed. There also needs to be a lot of tannins in the water. Neon tetras are old enough to breed at 12 weeks. [23]
Among those fishes remaining in the Characidae currently are the tetras, comprising the very similar genera Hemigrammus and Hyphessobrycon, as well as a few related forms, such as the cave and neon tetras. Fish of this family are important as food in several regions, and also constitute a large percentage of captive freshwater aquarium fish ...
Neon tetra: Paracheirodon innesi: 3.75 cm (1.48 in) Neon tetras must be kept in groups of at least a half-dozen, as they are a shoaling species. With peaceful dispositions, they are also able to be kept with other species of non-aggressive fish. [36] 38 L (10 gal) [36] 68 to 79 F (20 to 26 C) [36] 6.0–7.0 [37] Ornate tetra: Hyphessobrycon bentosi
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Black neon tetras are kept in soft acidic water, although captive-bread they can often survive in mature tap water with a range of 5.5 - 7.5. [ 7 ] [ 5 ] [ 6 ] Aquarists recommend that the water be kept clean at all times; that the tank contain live plants, a darker substrate and open water for swimming; and that the fish be kept in groups of ...
A heterotroph (/ ˈ h ɛ t ər ə ˌ t r oʊ f,-ˌ t r ɒ f /; [1] [2] from Ancient Greek ἕτερος (héteros) 'other' and τροφή (trophḗ) 'nutrition') is an organism that cannot produce its own food, instead taking nutrition from other sources of organic carbon, mainly plant or animal matter. In the food chain, heterotrophs are ...
Organotrophs use organic compounds as electron/hydrogen donors. Lithotrophs use inorganic compounds as electron/hydrogen donors.. The electrons or hydrogen atoms from reducing equivalents (electron donors) are needed by both phototrophs and chemotrophs in reduction-oxidation reactions that transfer energy in the anabolic processes of ATP synthesis (in heterotrophs) or biosynthesis (in autotrophs).
This fish is similar in appearance to the closely related and better-known neon tetra, but it is slightly smaller, and its red patch is less pronounced, while the blue-green areas of the upper body are more brilliant. Also, its body is slimmer than that of the neon tetra. It grows to a maximum overall length of about 3.5 cm (1.4 in).