to much air in the water

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Hello; I do not think areation from impellers or bubblers can get into the bloodstream of a fish. At any rate I have run bubblers and such for over 50 years without being awatre of such an issue.

I have heard that when fishing deep and bringing a fish up to the surface quickly that the air bladder can expand. Not sure how deep this would have to be?
 
Your thinking to hard. Humans have lungs and fish have gills.
 
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I guess as long as your tank isn't literally a bubble bath, it won't be a problem.
 
Airstones add very little in the way of dissolved gasses to aquarium water. What they do is break the surface tension of the water when the bubbles rise to the surface. This allows for gas exchange to occur.

Circulation pumps aimed at the surface have the same effect.

I am on a well and during winter months my water is supersaturated with dissolved gasses. If i do a large water change my fish will appear to have pop eye. Their eyes will bulge out of their heads. Much like a grouper being reeled up from the bottom. Luckily this condition went away in a few days and after figuring out what the heck happened I now either do smaller water changes or fill a 75 gallon barrel with the water and add an airstone and allow the water to degas.
 
Air embolism is akin to the nitrogen narcosis divers get, when dives go too long, and assent is done incorrectly.
It also happens to fish when they are caught at great depth, and brought up quickly.
Eyes can almost pop out of the head, and swim bladders expand exponentially.

Divers can actually get narked before they assend to. If you go past your no deco. limits and are using a regular air mixture at depths of more than 100 feet it actually happens quite often, sometimes even if you aren't past your limit. In those situations it's about equivalent to being drunk underwater as the nitrogen your blood absorbs gives you a feeling of intoxication.

I've also noticed that with fish certain species are more prone to that than others. Possibly due to a difference in swim bladder structure? Either way, 90% of the yellow perch and walleye I catch in water that's 50-100' deep tend to "puke up" their swim bladder even if brought up relatively slow. While lake trout and steelhead show no signs of sickness and will swim away quite fast once released.

Anyway, my point is that maybe certain species, even in an aquarium environment, are prone to more severe effects on them due to gas content and saturation than others.
 
I am on city water and the fish store said when i do a water change just let the water sit for 24 hrs befor puting it in the tank ... i was just worried i have to many bubbles like i said was running the air stone threw the intake of the power head so it turn half the tank into a fog and my eel seems to stay on the other side of the tank away from the bubbles. . Just want to make sure its alright
 
How do you get air in the water ?

I'm not sure if you mean "air" or "too much air", but although I'm not a chemist, I'll try to answer both using a laymen's explanation.

Air is always in the water naturally from molecular gas diffusion. (The amount is spread around the water and is in such a small amount that it's not obvious to the naked eye.)

Fish breathe air, not water, and they get their air in the water by way of their gills. (Some fish breathe from the source and just go to the surface and grab a mouthful of air instead.) But either way, that's why if you cover the surface of the water in a fish tank with a sheet of plastic (or oil), the fish will suffocate. (Plastic = no diffusion = no more oxygen.)

What's bad is when you have too much gas in the water and it's in the form of compressed air or micro bubbles.

The most common culprit is not air bubble diffusors or HOB water flow or most filters, since they create pretty large bubbles, but instead compression of the air (gas) in the water (which can easily happen in pipes as cold water comes to your house under pressure.) This creates a super saturation of gas. As already mentioned, you can have the problem if you see a somewhat milky, cloudy effect when you take a glass of water from the tap that clears up within a short period time.
 
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I'm not sure if you mean "air" or "too much air", but although I'm not a chemist, I'll try to answer both using a laymen's explanation.

Air is always in the water naturally from molecular gas diffusion. (The amount is spread around the water and is in such a small amount that it's not obvious to the naked eye.)

Fish breathe air, not water, and they get their air in the water by way of their gills. (Some fish breathe from the source and just go to the surface and grab a mouthful of air instead.) But either way, that's why if you cover the surface of the water in a fish tank with a sheet of plastic (or oil), the fish will suffocate. (Plastic = no diffusion = no more oxygen.)

What's bad is when you have too much gas in the water and it's in the form of compressed air or micro bubbles.

The most common culprit is not air bubble diffusors or HOB water flow or most filters, since they create pretty large bubbles, but instead compression of the air (gas) in the water (which can easily happen in pipes as cold water comes to your house under pressure.) This creates a super saturation of gas. As already mentioned, you can have the problem if you see a somewhat milky, cloudy effect when you take a glass of water from the tap that clears up within a short period time.


Well that is a problem i have a moray eel and there escape artist so i have been keeping a plastic sheet over the top to keep it in and also let light in .. also you said you can get air saturation in the water from cold pipes ... what do you do to solve the problem when it comes to a watee change ?
 
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