Not only that, but adults can live with the fry without any issues. This is a stark contrast to true Killifish, which lay eggs. It’s a unique sight to behold!Īnother unique interesting thing about Least Killifish is that they are livebearers. Sometimes, they will even school and swim in unison throughout your tank. This means that they stay in groups and spend a lot of time with each other. Throughout the day, you will witness all kinds of unique group behaviors. The good news is that you can keep several fish together. As such, they are best kept in a single-species tank. Because of their small size, they are often the target of aquarium predators. Not only is this small catfish an interesting specimen to watch, but it will also play an important role in maintaining the ecosystem! As long as waters are around 74 degrees and have a pH of roughly 6.5, they should have no problem staying healthy.Īlso known as “dwarf suckers,” the Otocinclus is a great addition to nano tanks. It looks like the pattern you would see on a medieval jester costume.įor the most part, Harlequin Rasboras are easy to take care of. However, the lower half of their body features a bold triangle-shaped patch of black. The body is covered in a pinkish-orange hue. These nano fish are named after their striking appearance. At the very least, they should be kept in groups of six to ensure that they feel safe and confident in their surroundings. As a general rule of thumb, two fish can be kept for every gallon of water your tank can hold. e.T39372A10187195. Accessed on 14 April 2022.These are shoaling fish that prefer to stay in large groups. " The IUCN Red List of Threatened Species. 2009. Simpfendorfer, C., and Burgess, G.H. " Carcharhinus leucas. " Carcharhinus Leucas (Cub Shark)." Animal Diversity Web. “ Carcharhinus Leucas Summary Page.” Fishbase. Jensen. 2013. " Hucho taimen." The IUCN Red List of Threatened Species. 2013. " The Biodiversity of Lake Victoria Threatened." Initiatives for the Future of Great Rivers. " Lates Niloticus (Victoria Perch)." Animal Diversity Web. " White Sturgeon." California Department Of Fish And Wildlife. " Acipenser Transmontanus (Oregon Sturgeon)." Animal Diversity Web. " The IUCN Red List of Threatened Species. 2011. " Catlocarpio Siamensis Summary Page." Fishbase. Fish & Wildlife Service). " Polyodon spathula (errata version published in 2020)." The IUCN Red List of Threatened Species. 2019. " Polyodon Spathula (American Paddlefish)." Animal Diversity Web. " Himantura Chaophraya (Freshwater Whipray)." Animal Diversity Web. " Giant Freshwater Stingray." World Wildlife Fund For Nature. " Arapaima Gigas (Arapaima)." Animal Diversity Web. " The Largest Fish In The World’S Biggest River: Genetic Connectivity And Conservation Of Arapaima Gigas In The Amazon And Araguaia-Tocantins Drainages." PLOS ONE, vol 14, no. Fish And Wildlife Service.įarias, Izeni Pires, et al. Hogan, Z. " Pangasianodon gigas." The IUCN Red List of Threatened Species. 2011: e.T15944A5324699. Accessed on 14 April 2022. " What Is the Largest Freshwater Fish?" United States Geological Society.
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