I-Los Izinhlanzi zeTetra Penguin, eyaziwa nangokuthi iThayeria Boehlkei noma i-oblique tetras, eyomndeni wakwaCharacidae futhi ivela ezweni laseNingizimu Melika, ncamashi ivela eBrazil nasePeru, lapho imifula i-Amazon ne-Araguaia inamanzi amnandi futhi azolile anezimila eziningi ezibenza baphile buthule. Lezi zinhlanzi ezincane zingafinyelela usayizi ongafinyelela kumasentimitha ayisithupha ubude, zinomzimba omncane kakhulu futhi ohlangane. Ngokuvamile zimhlophe ngokuyisiliva ngebhande elimnyama eligijima emzimbeni wonke. Lezi zinhlanzi zibonakala ngendlela yazo yokubhukuda ngoba ziyenza ngendlela ethambekele.
Uma ucabanga ngakho ube nalezi zinhlanzi ku-aquarium yakhoKufanele wazi ukuthi bayizilwane ezihlala nabantu, ezolile futhi ezinobungane, ngakho-ke badinga ukuhlala e-aquarium nezinye izinhlobo zezinhlanzi ezabelana ngezici ezifanayo nezabo. I-Oblique Tetras ayikhiqizi izimpi noma izimpikiswano ngaphakathi echibini, ukuze ube nezinye izilwane e-aquarium. Ngincoma ukuthi okungenani ube namakhophi ayi-6 noma ayi-7 ukuze izilwane zizizwe zikhululekile futhi zikhululekile.
Khumbula ukuthi i-aquarium kumele okungenani ibe ngamasentimitha angama-50 ubude, kanti izinga lokushisa kufanele libe phakathi kwama-22 nama-28 degrees Celsius. I-pH yamanzi kufanele ibe phakathi kuka-5,8 no-7,5 futhi ubunzima bungeqi ku-20. Khumbula ukuthi umhlobiso wechibi, ukulingisa indawo yemvelo yalezi zinhlanziKumele ibe nohlaza oluningi, zombili izitshalo ezintantayo ezihlunga ukukhanya, kanye nolwelwe, kanti futhi nenhlabathi kufanele ibe mnyama futhi ibe nesihlabathi.
Kubaluleke kakhulu ukuthi, yize sinokuningi izimila e-aquarium, masishiye izikhala zamahhala ukuze izilwane zikwazi ukubhukuda ngokukhululeka futhi zingabhekani nezithiyo.