Monster fish that can breathe air?

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When i researched the hujeta gars before buying them im sure ive read it somewhere, ill try to find it if i can, ofcourse only one source might be a little Sketchy to take as the ultimate truth wich is on me.

Im only about a year deep into the hobby but have been reading here and other forums for a bit longer, ive learned a lot of things and forget even more lol
 
Just because its 5 in the morning and im more than a few Beers deep and about to go to sleep im going to be very lazy and send this screenshot of a Google Search (AI answer) dont take this for the ultimate truth but ive read it on some other places aswell i believe

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M075 said:
Just because its 5 in the morning and im more than a few Beers deep and about to go to sleep im going to be very lazy and send this screenshot of a Google Search (AI answer) dont take this for the ultimate truth but ive read it on some other places aswell i believe

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I just read about it on Seriously Fish and found this pic. Very interesting

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tiger15 said:
Some commercial fish farms ship goldfish in a sedated, oxygenated, waterless environment. The process usually involves:
Temporarily sedating the fish, Lowering their metabolism by refrigerating them, and packing them in high-oxygen, humid bags with just enough moisture to keep their gills wet.

I've seen live Asian carp sold in fish markets in bucket without water. I am not sure if Asian carp can breathe air directly, but apparently, they can stay alive for hours out of water
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I guess that’s one way to save on shipping costs. Hard to believe goldfish can survive in just a humid bag!
 
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tiger15 said:
Some commercial fish farms ship goldfish in a sedated, oxygenated, waterless environment. The process usually involves:
Temporarily sedating the fish, Lowering their metabolism by refrigerating them, and packing them in high-oxygen, humid bags with just enough moisture to keep t

I've seen live Asian carp sold in fish markets in bucket without water. I am not sure if Asian carp can breathe air directly, but apparently, they can stay alive for hours out of water.


I cannot find any reference that says Hujeta gar can breathe air. Hujeta gar is a characin, not a true gar which can breathe air.
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🫁 Obligate Air-Breathing Fish

Must breathe air to survive


  • Lungfish (African, South American, Australian)
  • Bettas & Gouramis (family Osphronemidae) – labyrinth organ
  • Climbing perch (Anabas testudineus)
  • Snakeheads (Channa spp.)
  • Swamp eels (Monopterus spp.)
  • Walking catfish (Clarias spp.)
  • Arapaima (Arapaima gigas)
  • Electric eel (Electrophorus electricus)


🫧 Facultative Air-Breathing Fish​


Can breathe air when oxygen is low


  • Bichirs (Polypterus) – primitive lungs
  • Bowfin (Amia calva) – modified swim bladder
  • Gar (Lepisosteus spp.)
  • Arowana (Osteoglossum spp.)
  • Catfish (many species, including Corydoras)
  • Loaches (weather loach, kuhli loach)
  • Knifefish
  • Mudskippers (also breathe through skin and mouth lining)
  • Eel-like fishes (various species)


🌊 Intertidal / Amphibious Air Breathers​


Spend time out of water


  • Mudskippers
  • Rockskippers
  • Mangrove rivulus (Kryptolebias marmoratus)


🧠 How They Breathe Air​


  • Lungs (lungfish, bichirs)
  • Labyrinth organ (bettas, gouramis)
  • Modified swim bladder (gar, bowfin, arowana)
  • Skin & mouth lining (mudskippers)
 
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