But of course, goldfish are surface air breathers. They, however, have never been seen to blow bubbles out of their gills. He wasn't doing normal surface breathing, he was gulping big mouthfuls and then blowing it out of his gills in bubbles. He hasn't done it again since I posted and is acting ...

It's at "room temperature", and I live in the desert with a swamp cooler, so that means right this second the water temperature is 80 degrees F. I have two magnum 350 canister filters (no bio-wheels) but only one has ever worked properly--the other just kind of trickles out of the outtake.
He's not ...

Hi there.
I was just watching my 2 yr old albino channel cat gulp air from the surface and then blow bubbles out through his gills. He doesn't seem in distress and is back in his cave now but I've only seen him breathe from the surface, in the past, when it's about time to do a water change (he's in ...