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#1
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Unsolved CO2 Mysteries
I've been using CO2 injection on my 75 gallon tank for several months
now. I noticed today that every plant was just covered with bubbles which normally would be a good thing except that it started happening all at once. I also noticed that I'm getting a continuous stream of bubbles from the Co2 tank. The gauge which was up at 900PSI is now down to 500PSI. When I checked the water parameters, I have a Kh of 16 and pH of 6.6. Here are my questions: 1) Even though the pressure in the Co2 tank has only dropped 40%, I seem to recall that the drop to 500 means it is almost empty. Is that correct? 2) I have an Azoo Co2 Indicator which is showing green (OK), but according to the charts, my Co2 is 115 PPM which is very high... are the Azoo indicators worthless? 3) My tap water is natively about Kh 20 so I use exclusively untreated RO water for water changes. My plan was to bring the Kh down to about 7 and then start mixing tap water in with the RO water. After six months or so, I would have thought the kH would have been lower by now. Any idea what's going on here? Thanks |
#2
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Unsolved CO2 Mysteries
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#3
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Unsolved CO2 Mysteries
sorry for the newbie question, but what does Kh stand for? and is there
a site that tells you all about planted tanks and what levels evertyhign should be at? and how to achieve those respective levels? thanks |
#4
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Unsolved CO2 Mysteries
You might look at some of these sites...
http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm http://www.thekrib.com/Plants/CO2/kh-ph-co2-chart.html http://www.csd.net/~cgadd/aqua/articles.htm |
#5
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Unsolved CO2 Mysteries
Kh stands for carbonate hardness - also known as alkalinity. A relatively
high Kh means your ph should remain stable and not crash (i.e. drop drastically and suddenly). Good luck and seasons greetings! -- You can find my public key at https://keyserver1.pgp.com "fusQ" wrote in message ... sorry for the newbie question, but what does Kh stand for? and is there a site that tells you all about planted tanks and what levels evertyhign should be at? and how to achieve those respective levels? thanks |
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