Aquarium & Tropical Fish Site
Tropical Fish Forums
Aquarium fishkeeping around the world!
 
ChatChat  HelpHelp   Search BoardSearch Board   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Check your private messagesCheck your private messages   Log inLog in   RegisterRegister 
Cories + breathing air = necessity?
 Forum Index > Bottom Dwellers and Invertebrates  Reply to topic   Post new topic
Author Message
Danikins
Regulars


Joined: 19 May 2006
Location: Edmonton, AB, Canda

PostPosted: 2006.12.31(Sun)13:37    Post subject: Cories + breathing air = necessity? Reply with quote

I was just wondering... I know cories have some gland or something in their abdominal tracts/stomachs or something that let them breathe air from the surface.... but do they *have* to? Or can they get air from the water (through their gills) as well? I've always wondered the same things about bettas as well...
_________________
In the beginning, the Universe was created. This made a lot of people angry, and has been widely regarded as a bad move.
Back to top
View user's profile Send private message Send e-mail MSN Messenger
Minsc
Regulars


Joined: 03 Jan 2006
Location: Framingham, Mass

PostPosted: 2006.12.31(Sun)14:34    Post subject: Reply with quote

Bettas and other labyrinth fish do need to breath air or they will die. Cories only need to breath air if there isn't enough oxygen in the water. In a well airated tank, they often will only go to the top very rarely. In my tank, the top got so overgrown with floating plants, the cories couldn't find anywhere to grab any air. They would zip towards the top and then swim back down looking annoyed, but they were fine health wise.
Back to top
View user's profile Send private message
Cinder
Regulars


Joined: 16 Jan 2006
Location: Colorado

PostPosted: 2006.12.31(Sun)14:34    Post subject: Reply with quote

I can't answer the Cory part of this question but I can answer in regards to Bettas. They have a Labyrinth organ which allows them to breath air. If you put a Betta in a bowl and put a lid on it that is under the surface of the water, thus not allowing the Betta access to air - it will drown.
This is one of the reasons that people have such different ideas as to how big/small of container a Betta should be kept in. They can live in a puddle of muddy water (and do during the dry season in their native country) since they breath air but ... they are healthiest and happiest when in a much larger quantity of water which is where they live most of the year in their native country.
_________________
135 gln. freshwater tank
29 gln. freshwater tank
Back to top
View user's profile Send private message
Danikins
Regulars


Joined: 19 May 2006
Location: Edmonton, AB, Canda

PostPosted: 2006.12.31(Sun)16:06    Post subject: Reply with quote

Very interesting. Thanks a lot, both of you! My cories don't do it a lot, thats why I was wondering if they had to or if it was just optional. Thanks! =D
_________________
In the beginning, the Universe was created. This made a lot of people angry, and has been widely regarded as a bad move.
Back to top
View user's profile Send private message Send e-mail MSN Messenger
Display posts from previous:   
 Forum Index > Bottom Dwellers and Invertebrates All times are GMT - 6 Hours Reply to topic   Post new topic
Jump to:  
  You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2008 phpBB Group

oF <=> oC in <=> cm G <=> L