[lamthuyduong]

I just started a 10 gallon planted tank two days ago. 2x15w flourescent lights, diy co2 injection,flourite substrate,external canister filter. Here are my readings:

pH: 6.8
KH: 6 dkH

My problem is when CO2 is introduced, it lowers the pH dramatically, from 6.8 to around 6 and it goes lower. With a KH of 6 degrees, should this happen? What can I do?. Thank You.
Lam

 

[Simpte 27]

It could very well, depending on how much CO2 you are using. Is your CO2 a DIY system?

 

[lamthuyduong]

pH and KH

It's a DIY CO2 yeast system. It's a 3 liter bottle. I used 3 cups of sugar and 1 teaspoon of yeast. The bottle is producing a lot of CO2. I get about 2 to 3 bubbles per second.

 

[trenac]

You may want to adjust the amount of sugar and yeast you are using to see if that helps. Also I would retest the KH, if it is in fact a 6 then the PH should stay pretty much stable.