There are battery powered and solar powered bubblers available but I can't swear to their efficiency. A small amount of oxygen could be added by use of spraying water. The finer spray the better but it would take a lot of water for small return. Hydrogen peroxide will add oxygen to the water without hurting the fish. It also gets rid of most string algae. Anything that moves the water will help. Battery operated pumps are available. Sorry, I can't recommend brands.

There are devices that measure oxygen content. You might want to locate one. Some people have run water wheels with a small windmill. Now I am getting desperate. Good luck.

Thanks, Sleepless. Solar powered bubblers won't work since the sun won't be out. I guess I'll try to add water by misting in some of our town water. We have a old well and we use that for the pond but with no power we cannot. Our town water has additives but I'm desperate. Thanks for your suggestions.

Lily, the more splash the better. A little trick I learned is to punch a 1/4 to 5/16 inch hole in a hose like a syphon and insert a tube with the inserted end pointed toward the output end of the hose. As the water passes the straw it sucks in air. As the air goes through the rest of the hose it creates turbulence that increases the oxygen content of the water by breaking up the air from the tube suspending it as bubbles.

Last Oct here in NJ we were without power for 8 days due to the heavy early snow storm. I am in the country so we had no water or anything else.

I kept my KOI alive with a 5 gallon bucket by dunking it into the pond and pouring it back into the pond about 5 times a day. Its a pain but the more times you do it while you are out at the pond the better. 3-4 buckets each time x 5 times per day. I lost no fish.

This year I have a small generator.

I don't know why I didn't remember this since I have two of them but Hyponex sells an inline siphon for mixing fertilizer and such. It is brass and the tubing is rubber. It has a spring device on the end to act as a filter. I have had mine for years and it works very well. If you don't stick the free end in a solution it sucks air but remove the spring to get more air. I checked to see if it is still sold and it has several listings for different companies. They all look just like mine. Dramm has a model too but the style is different.Decent water pressure is necessary.

See the link.

Here is a link that might be useful: Inline siphon

lily316, So how did you make out in the storm? Ihad to endure 10 days with no electricity or well water. Not so bad compaired to my nieghbors with trees on their homes.

My fishall servived :-)