no, it's biology. i guess it'd also be chemistry but reactions are because of a living organism.
http://www.cofalec.com/scie1e.htm is a great site.
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hmm it really isnt bio its more Chemistry, and also i dont know how this would work..
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pretty simple, in regular diy systems all bottles are sealed except for one tube that allows the co2 that the yeast produced to leave and go into the aquarium, but oxygen isnt coming back up the tube, so they yeast go through fermentation, which means they still use the gluccose even if there isnt oxygen, and they produce alcohol. same thing happens with your muscles, there is anaroebic and aerobic activities. aerobic would be like jogging where you breathe alot, and oxygen can get to your muscles. anarobic would be like pushups, after using all the atps and oxygen in the muscels very quickly, so they have to use fermentation, that prodces lactic acid, which is why muscles are sore after working out too much.
but with the system above, oxygen would be allowed to come through the tubes coming out of the bottles, but co2 wouldnt be able to escape out of them. and since there is oxygen the yeast could live longer and reproduce more. the co2 and water would meet and be combined in the pump, and get pushed out into the water. but there would be a lot more o2 than co2 coming from the bottles. and as simpte said, that would screw it up, and the co2 wouldnt be absorbed into the water.
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Probably be cheaper to buy a 5lb CO2 bottle and use a DIY reactor (less than $140.00)
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i have a co2 cannister for a paintball gun, im pretty sure its co2 and not compressed o2. but wouldnt i need a co2 regulaor? and those things can be expensive.
ive been on ebay looking at stuff.
http://cgi.ebay.com/ws/eBayISAPI.dll...41773&rd=1
http://cgi.ebay.com/ws/eBayISAPI.dll...28633&rd=1
how does the first one work?
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Adding O2 into your tank will in fact reduce your CO2 uptake
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why? i know it does, but why does it? is it because of surface agitation releasing the co2? and would a good diffuser fix the problem? more co2 in an aquarium with plants puts more oxygen into the water than without co2 and extra CO2 does not displace any oxygen, and vise versa.