Pure oxygen for aeration of temporary tank

[Dave Cee]

Have set up a temporary tank for the fiss-kees while draining and cleaning the main tank.
40 liter temp tank
400 grams of fish
What recommended O2 flow rate in liters per minute?

 

[Mmathis]

Aquarium or pond fish?

Basically that’s a 10 gallon tank. We don’t usually measure our fish by weight, but by length, so how many and what kind of fish.

I have never heard of using pure oxygen, and I really don’t know if a “flow rate” can be calculated for this. Sounds like a lot of chemistry would be involved so as not to supersaturate the water. Basically, the oxygen that the fish use is that that is found at the water’s surface.

 

[Dave Cee]

Thank you. I worried about excessive O2 so I ran 0.5 liters per minute for 30 minutes only. Had the fish back in their tank after 8 hours with no visible ill effect. Cheers. Dave