Gas bubbles from angel gills?

Hebily

My Tank \/
Mar 15, 2009
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Racine, Wi
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I just noticed as my angel fish were eating that gas bubbles were coming out of their gills. I have never noticed this before with any fish, and it concerns me. Is this normal for angelfish? They were eating flake off of the surface.
 
first thing pops into my mind is air stuck to gills after being taken in from suface when sucking in the food. but i'm no expert will be interesting to see other replies.
 
Just to make sure that my OP was clear, it looked kinda like their gills were bubblers... bubbles about half of the size of their eyes were flowing out at a stead rate. I'm not horribly worried, because they are showing good color, and their fins aren't even a little clamped... they are fully spread. It just seems really wierd and I'm a little afraid that it might be an early sign of a problem.
 
The angel is enthusiastic about inhaling flakes off the surface of the water, correct?

Well, when near the surface and trying to suck down a flake air is bound to come in with the flake. That air is then following the natural flow of water out the gills.

Nothing wrong with the angel other than enthusiastic eating.
 
I was wondering if that might be it... It just seems that air coming out would be more absorbed in the water... but they are in fact very eager eaters. Almost as much fun as when I saw a kuhli loach dart from the bottom of the tank to the top, come out of the water a little bit, and dart back to the bottom with a flake in it's mouth. Or when I saw a ghost shrimp 'walk' upside down on the surface of the water, picking up flakes and eating them, just like it would off of the bottom... Anyway, back to the angels... yeah, they are pretty extreme when it comes to chasing their food.
 
My angels do the same thing. Little piglets, the lot of them. :) They take food off the surface so enthusiastically, I can hear the "snap" across the room.
 
My angels entertain my wife and I for years with their eating habits. Yes, they suck in air when surface feeding and always expel a significant amount through gills or back out the mouth. Some people recommend to not use surface foods for the reason they can get too much air. I personally have never had that problem arise and use both floating and sinking foods
 
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