And if so, do they have SBDs too?
Yes I believe fish do. I have owned many and a few of them shot out air bubbles when they pooed. Flatulence is caused by swallowing air, chewing gum is the biggest cause for flatulence. Many fish gulp air when they eat
Go about a quarter of the way down the page to the section on “Do Fish Fart”. Here is an excerpt…
“According to our ichthyologist at the University of Guam, fish flatulence per se has not been studied, although people have investigated fish digestion. They find that although most fish have alkaline intestinal environments like our own, coral-eating fish have acidic intestinal contents. The acid serves to dissolve coral skeletal material. Coral has the same composition as Tums (calcium carbonate). One product of the reaction between acid and calcium carbonate is carbon dioxide gas. Therefore, it is logical to assume that coral-eating fish fart a lot.
The other fish probably fart also, for the same reasons that we do.”
“Flatulence is caused by swallowing air,” the link sais so but that gotta be minor, seems that would be released as a burp. Fish have a swimbladder too, a sorta interior balloon of gas that helps um maintain depth. sometimes adjustments require the release of gas from there, they got a whole nother way of producin farts that we can only dream of. Which is good cause,fishies are not allowed to chew gum in their schools. Nasty habit, looks like a cow chewing the cud. Speakin of which, ask Funnee bout them cows. Now there is some fermentin flatulatin reverberatin fools. Insects can fart, I think I’ve told yall about that cheap canned “Luncheon Meat” whose primary ingredient is beef hearts.
“Pardon me while I have a strange interlude.”-Marx