The Mystery of the Upside | 水產百科網
Youmightthinkthisupside-downcatfishissickorconfused,but...Today,they'remoreoftenfoundinaquariums,wheretheycanliveupto15yearsand...inthewild,oxygenlevelsinthewatercanhaveabigimpact,including ...
Normally, an upside-down fish in your tank is bad news. As in, it’s time for a new goldfish.
That’s because most fish have an internal air sac called a swim bladder that allows them to control their buoyancy and orientation. They fill the bladder with air when they want to rise, and deflate it when they want to sink. Fish without swim bladders, like sharks, have to swim constantly to keep from dropping to the bottom.
If an aquarium fish is listing to one side or flops over on its back, it often means it has swim bladder disease, a potentially life-threatening condition usually brought on by parasites, overfeeding or high nitrate levels in the water.
The blotched upside-down catfish is one of seven species that swim in an inverted position. (Josh Cassidy / KQED)But for a few remarkable fish, being upside down means everything is great. ...
The Mystery of the Upside | 水產百科網
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【超級舒瓦茲鼠Corydoras schwartzi】美甲鯰科
水產分類:台灣常見的大陸水產品圖說中文名稱:超級舒瓦茲鼠學名:Corydorasschwartzi科別名稱:美甲鯰科命名學者:Rössel1963