Questions in CO2

CO2 injection for pH control and plant growth stimulation

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• How can I tell how much CO2 is in my water?
  (36437 views)
• My pH keeps dropping on my tank now that I've added CO2.
  (2155 views)
• Did you know that if you add one tablespoon of coffee to your co2 do it yourself kit, that your output will be more vigorous and last one third to twice as long?
  (31044 views)
• I have just bought a CO2 Tank with a regulator. The tank weights XXX & the volume for the tank is YYY. That gives it a combined weight of ZZZ. I was told that the regulator should be indicating 70bar (1015 PSI)when the tank is full but the weight at this point (70 bar) is AAAA. Shouldn't the tank weigh (after safety measure to avoid explosion) somewhere around BBB to CCC if it is full since the total weight is ZZZ?
  (2098 views)
• i have a 30-gallon hexagonal tank with few anubias, amazon swords, and java fern.  the fish include swordtail, pleco, silver dollar, ram, angels and cat fish. i plan to use the DIY yeast method to inject co2 into my tank.  I understand that the KH (loosenly used) has to be at certain level before injecting co2.   i used one of those simple kit that i got from the pet store to measure both KH an GH.  The method is keep adding drops into the test tube until the color changes.  What i found to be a big surprise is that I used 17 DROPS to get the GH balance (which translates into 300ppm!!!) and used 1-2 drops to get the KH balance (3 tests together).  My questions are 1) Does this sound normal?? 2) Do I have to increase the KH balance before using co2 injection (current pH balance is around 7.0) 3) are there any other precautions I should take before adding the co2??  Thanks.
  (2193 views)
• I did a DIY CO2 Generator. The CO2 is quite inconsistant. Sometimes there is a lot of bubbles, sometimes less & sometimes none. Besides that, evertime you move the airline tubing ( accidentally or not ) it stops. Is there any way to make it more constant without resorting to the use of CO2 Pressurised Systems?  
  (2177 views)
• What kind of yeast should I use?
  (2181 views)
• You said to use pH 7.0 water but then you say CO2 and water makes carbonic acid.  Isn't this just a waste of time then?
  (2178 views)
• Someone said I need to use Baking Soda in my CO2 system.  Why do you not mention this?
  (2169 views)
• How can I speed up/slow down/better use CO2 in my tank?
  (2164 views)

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