01-20-2010, 04:22 PM
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Well, I'm sure if you wanted to, you could, but I usually don't want to have to have water sit out for 4 days before I'm able to do a water change. Most aquarists don't have problems with oxygenated water, probably the ones with planted tanks. To set up plants for the long term in a gallon jar would probably not work, unless you provided fertilizer. Since this post seems to be the reason you joined, or a main reason, let me warn you: seltzer in water will kill fish. It's one of the ways some people do kill fish, when the fish is fatally wounded, but it is regarded as inhumane, since the fish slowly suffocates due to CO2 in the water and a lack of oxygen. But anyway, aquatic plants do better with fish waste, and if you're adding fish waste to plants in a jar of water, you might as well have a new aquarium. Just stick an airstone in the one you've got and future water changes shouldn't be a problem.