do fish produce carbon dioxide?

[tmdavies]

our muscles use oxygen and turn it into carbon dioxide which we beathe out of our lungs, when fish's muscles use oxygen do how do they get rid of the waste carbon dioxide. Do their gills put it into the water?

 

[jcolon]

our muscles use oxygen and turn it into carbon dioxide which we beathe out of our lungs, when fish's muscles use oxygen do how do they get rid of the waste carbon dioxide. Do their gills put it into the water?

Yes ...See the link below.

Do fish exhale CO2 through their gills as well as taking in Oxygen through them? | Answerbag

 

[tmdavies]

thank you that answered it perfectly

 

[GodFan]

I want to add co2 to a tank by using only fish.